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Zhang C, Xiang X, Yang T, Liu X, Ma Y, Zhang K, Liu X, Chu H. Nitrogen fertilization reduces plant diversity by changing the diversity and stability of arbuscular mycorrhizal fungal community in a temperate steppe. Sci Total Environ 2024; 918:170775. [PMID: 38331277 DOI: 10.1016/j.scitotenv.2024.170775] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/26/2023] [Revised: 01/22/2024] [Accepted: 02/05/2024] [Indexed: 02/10/2024]
Abstract
Nitrogen (N) deposition resulting from anthropogenic activities poses threats to ecosystem stability by reducing plant and microbial diversity. However, the role of soil microbes, particularly arbuscular mycorrhizal fungi (AMF), as mediators of N-induced shifts in plant diversity remains unclear. In this study, we conducted 6 and 11 years of N addition field experiments in a temperate steppe to investigate AMF richness and network stability and their associations with plant species richness in response to N deposition. The N fertilization, especially in the 11 years of N addition, profoundly decreased the AMF richness and plant species richness. Furthermore, N fertilization significantly decreased the AMF network complexity and stability, with these effects becoming more enhanced with the increase in N addition duration. AMF richness and network stability showed positive associations with plant diversity, and these associations were stronger after 11 than 6 years of N addition. Our findings suggest that N deposition may lead to plant diversity loss via a reduction of AMF richness and network stability, with these effects strengthened over time. This study provides a better understanding of plant-AMF interactions and their response to the prevailing global N deposition.
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Affiliation(s)
- Cunzhi Zhang
- State Key Laboratory of Soil and Sustainable Agriculture, Institute of Soil Science, Chinese Academy of Sciences, 71 East Beijing Road, Nanjing 210008, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Xingjia Xiang
- Anhui Province Key Laboratory of Wetland Ecosystem Protection and Restoration, School of Resources and Environmental Engineering, Anhui University, Hefei, China
| | - Teng Yang
- State Key Laboratory of Soil and Sustainable Agriculture, Institute of Soil Science, Chinese Academy of Sciences, 71 East Beijing Road, Nanjing 210008, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Xu Liu
- State Key Laboratory of Soil and Sustainable Agriculture, Institute of Soil Science, Chinese Academy of Sciences, 71 East Beijing Road, Nanjing 210008, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Yuying Ma
- State Key Laboratory of Soil and Sustainable Agriculture, Institute of Soil Science, Chinese Academy of Sciences, 71 East Beijing Road, Nanjing 210008, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Kaoping Zhang
- CAS Key Laboratory of Aquatic Botany and Watershed Ecology, Wuhan Botanical Garden, Chinese Academy of Sciences, Wuhan 430074, China
| | - Xuejun Liu
- State Key Laboratory of Nutrient Use and Management (SKL-NUM), College of Resources and Environmental Sciences, National Academy of Agriculture Green Development, China Agricultural University, Beijing 100193, China
| | - Haiyan Chu
- State Key Laboratory of Soil and Sustainable Agriculture, Institute of Soil Science, Chinese Academy of Sciences, 71 East Beijing Road, Nanjing 210008, China; University of Chinese Academy of Sciences, Beijing 100049, China.
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2
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Wang S, Hong P, Adler PB, Allan E, Hautier Y, Schmid B, Spaak JW, Feng Y. Towards mechanistic integration of the causes and consequences of biodiversity. Trends Ecol Evol 2024:S0169-5347(24)00054-5. [PMID: 38503639 DOI: 10.1016/j.tree.2024.02.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2023] [Revised: 02/21/2024] [Accepted: 02/23/2024] [Indexed: 03/21/2024]
Abstract
The global biodiversity crisis has stimulated decades of research on three themes: species coexistence, biodiversity-ecosystem functioning relationships (BEF), and biodiversity-ecosystem functional stability relationships (BEFS). However, studies on these themes are largely independent, creating barriers to an integrative understanding of the causes and consequences of biodiversity. Here we review recent progress towards mechanistic integration of coexistence, BEF, and BEFS. Mechanisms underlying the three themes can be linked in various ways, potentially creating either positive or negative relationships between them. That said, we generally expect positive associations between coexistence and BEF, and between BEF and BEFS. Our synthesis represents an initial step towards integrating causes and consequences of biodiversity; future developments should include more mechanistic approaches and broader ecological contexts.
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Affiliation(s)
- Shaopeng Wang
- Key Laboratory for Earth Surface Processes of the Ministry of Education, Institute of Ecology, College of Urban and Environmental Science, Peking University, Beijing 100871, China.
| | - Pubin Hong
- Key Laboratory for Earth Surface Processes of the Ministry of Education, Institute of Ecology, College of Urban and Environmental Science, Peking University, Beijing 100871, China
| | - Peter B Adler
- Department of Wildland Resources and the Ecology Center, Utah State University, Logan, UT 84322, USA
| | - Eric Allan
- Institute of Plant Sciences, University of Bern, Altenbergrain 21, 3013 Bern, Switzerland; Centre for Development and Environment, University of Bern, Mittelstrasse 43, Bern 3012, Switzerland
| | - Yann Hautier
- Ecology and Biodiversity Group, Department of Biology, Utrecht University, Padualaan 8, 3584, CH, Utrecht, The Netherlands
| | - Bernhard Schmid
- Remote Sensing Laboratories, Department of Geography, University of Zurich, Winterthurerstrasse 190, CH-8057 Zurich, Switzerland
| | - Jurg W Spaak
- Landscape ecology, RPTU Kaiserslautern Landau, 76829 Landau, Germany
| | - Yanhao Feng
- State Key Laboratory of Herbage Improvement and Grassland Agro-ecosystems, College of Pastoral Agriculture Science and Technology, Lanzhou University, Lanzhou 730020, China
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3
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Zhang H, Chen W, Dong L, Wang W. Grassland degradation amplifies the negative effect of nitrogen enrichment on soil microbial community stability. Glob Chang Biol 2024; 30:e17217. [PMID: 38456565 DOI: 10.1111/gcb.17217] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/09/2023] [Revised: 01/27/2024] [Accepted: 02/07/2024] [Indexed: 03/09/2024]
Abstract
Although nitrogen (N) enrichment is known to threaten the temporal stability of aboveground net primary productivity, it remains unclear how it alters that of belowground microbial abundance and whether its impact can be regulated by grassland degradation. Using data from N enrichment experiments at temperate grasslands with no, moderate, severe, and extreme degradation degrees, we quantified the temporal stability of soil microbial abundance (hereafter 'microbial community stability') using the ratio of the mean quantitative PCR to its standard deviation over 4 years. Both bacterial and fungal community stability sharply decreased when N input exceeded 30 g N m-2 year-1 in non-degraded grasslands, whereas a reduction in this threshold occurred in degraded grasslands. Microbial species diversity, species asynchrony, and species associations jointly altered microbial community stability. Interestingly, the linkages between plant and microbial community stability were strengthened in degraded grasslands, suggesting that plants and soil microbes might depend on each other to keep stable communities in harsh environments. Our findings highlighted the importance of grassland degradation in regulating the responses of microbial community stability to N enrichment and provided experimental evidence for understanding the relationships between plant and microbial community stability.
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Affiliation(s)
- Hongjin Zhang
- Department of Ecology, College of Urban and Environmental Sciences and Key Laboratory for Earth Surface Processes of the Ministry of Education, Peking University, Beijing, China
| | - Weile Chen
- College of Life Sciences, Zhejiang University, Hangzhou, China
| | - Lizheng Dong
- Department of Ecology, College of Urban and Environmental Sciences and Key Laboratory for Earth Surface Processes of the Ministry of Education, Peking University, Beijing, China
| | - Wei Wang
- Department of Ecology, College of Urban and Environmental Sciences and Key Laboratory for Earth Surface Processes of the Ministry of Education, Peking University, Beijing, China
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Dietrich P, Ebeling A, Meyer ST, Asato AEB, Bröcher M, Gleixner G, Huang Y, Roscher C, Schmid B, Vogel A, Eisenhauer N. Plant diversity and community age stabilize ecosystem multifunctionality. Glob Chang Biol 2024; 30:e17225. [PMID: 38462708 DOI: 10.1111/gcb.17225] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/24/2023] [Revised: 02/05/2024] [Accepted: 02/17/2024] [Indexed: 03/12/2024]
Abstract
It is well known that biodiversity positively affects ecosystem functioning, leading to enhanced ecosystem stability. However, this knowledge is mainly based on analyses using single ecosystem functions, while studies focusing on the stability of ecosystem multifunctionality (EMF) are rare. Taking advantage of a long-term grassland biodiversity experiment, we studied the effect of plant diversity (1-60 species) on EMF over 5 years, its temporal stability, as well as multifunctional resistance and resilience to a 2-year drought event. Using split-plot treatments, we further tested whether a shared history of plants and soil influences the studied relationships. We calculated EMF based on functions related to plants and higher-trophic levels. Plant diversity enhanced EMF in all studied years, and this effect strengthened over the study period. Moreover, plant diversity increased the temporal stability of EMF and fostered resistance to reoccurring drought events. Old plant communities with shared plant and soil history showed a stronger plant diversity-multifunctionality relationship and higher temporal stability of EMF than younger communities without shared histories. Our results highlight the importance of old and biodiverse plant communities for EMF and its stability to extreme climate events in a world increasingly threatened by global change.
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Affiliation(s)
- Peter Dietrich
- German Centre of Integrative Biodiversity Research (iDiv) Halle-Jena-Leipzig, Leipzig, Germany
- Institute of Biology, Leipzig University, Leipzig, Germany
| | - Anne Ebeling
- Institute of Ecology and Evolution, Friedrich Schiller University, Jena, Germany
| | - Sebastian T Meyer
- School of Life Sciences Weihenstephan, Technical University of Munich, Munich, Germany
| | - Ana Elizabeth Bonato Asato
- German Centre of Integrative Biodiversity Research (iDiv) Halle-Jena-Leipzig, Leipzig, Germany
- Institute of Biology, Leipzig University, Leipzig, Germany
| | - Maximilian Bröcher
- Institute of Ecology and Evolution, Friedrich Schiller University, Jena, Germany
| | - Gerd Gleixner
- Max Planck Institute for Biogeochemistry, Jena, Germany
| | - Yuanyuan Huang
- German Centre of Integrative Biodiversity Research (iDiv) Halle-Jena-Leipzig, Leipzig, Germany
- Institute of Biology, Leipzig University, Leipzig, Germany
| | - Christiane Roscher
- German Centre of Integrative Biodiversity Research (iDiv) Halle-Jena-Leipzig, Leipzig, Germany
- Department Physiological Diversity, Helmholtz Centre for Environmental Research (UFZ), Leipzig, Germany
| | - Bernhard Schmid
- Department of Geography, Remote Sensing Laboratories, University of Zurich, Zurich, Switzerland
| | - Anja Vogel
- German Centre of Integrative Biodiversity Research (iDiv) Halle-Jena-Leipzig, Leipzig, Germany
- Institute of Biology, Leipzig University, Leipzig, Germany
| | - Nico Eisenhauer
- German Centre of Integrative Biodiversity Research (iDiv) Halle-Jena-Leipzig, Leipzig, Germany
- Institute of Biology, Leipzig University, Leipzig, Germany
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Paul S, Parvez SS, Goswami A, Banik A. Exopolysaccharides from agriculturally important microorganisms: Conferring soil nutrient status and plant health. Int J Biol Macromol 2024; 262:129954. [PMID: 38336329 DOI: 10.1016/j.ijbiomac.2024.129954] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2023] [Revised: 08/10/2023] [Accepted: 02/01/2024] [Indexed: 02/12/2024]
Abstract
A wide variety of microorganisms secretes extracellular polymeric substances or commonly known as exopolysaccharides (EPS), which have been studied to influence plant growth via various mechanisms. EPS-producing microorganisms have been found to have positive effects on plant health such as by facilitating nutrient entrapment in the soil, or by improving soil quality, especially by helping in mitigating various abiotic stress conditions. The various types of microbial polysaccharides allow for the compartmentalization of the microbial community enabling them to endure undressing stress conditions. With the growing population, there is a constant need for developing sustainable agriculture where we could use various PGPR to help the plant cope with various stress conditions and simultaneously enhance the crop yield. These polysaccharides have also found application in various sectors, especially in the biomedical fields, manifesting their potential to act as antitumor drugs, play a significant role in immune evasion, and reveal various therapeutic potentials. These constitute high levels of bioactive polysaccharides which possess a wide range of implementation starting from industrial applications to novel food applications. In this current review, we aim at presenting a comprehensive study of how these microbial extracellular polymeric substances influence agricultural productivity along with their other commercial applications.
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Affiliation(s)
- Sushreeta Paul
- Laboratory of Microbial Interaction, Institute of Health Sciences, Presidency University, Kolkata, West Bengal, India
| | - Sk Soyal Parvez
- Laboratory of Microbial Interaction, Institute of Health Sciences, Presidency University, Kolkata, West Bengal, India
| | - Anusree Goswami
- Laboratory of Microbial Interaction, Institute of Health Sciences, Presidency University, Kolkata, West Bengal, India
| | - Avishek Banik
- Laboratory of Microbial Interaction, Institute of Health Sciences, Presidency University, Kolkata, West Bengal, India.
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6
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Niu B, Fu G. Response of plant diversity and soil microbial diversity to warming and increased precipitation in alpine grasslands on the Qinghai-Xizang Plateau - A review. Sci Total Environ 2024; 912:168878. [PMID: 38029973 DOI: 10.1016/j.scitotenv.2023.168878] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/19/2023] [Revised: 11/15/2023] [Accepted: 11/23/2023] [Indexed: 12/01/2023]
Abstract
Plant diversity and soil microbial diversity are closely related, and they maintain the health and stability of terrestrial ecosystems. As a hotspot region of global biodiversity research, both air temperature and precipitation of the Qinghai-Xizang Plateau tend to increase in future. Based on an overview of the responses of grassland/alpine ecosystems to seasonal asymmetric warming and increased precipitation worldwide, we elaborated the advancements and uncertainties on the responses of plant diversity and soil microbial diversity to warming and increased precipitation in alpine grasslands on the Qinghai-Xizang Plateau. The future research focus of plant diversity and soil microbial diversity in the alpine grasslands of the Qinghai-Xizang Plateau under climate warming and increased precipitation was proposed. Generally, previous studies found that the responses of plant species diversity and soil microbial species diversity to warming and increased precipitation differed between alpine meadows and alpine steppes, but few studies focused on their responses to warming and increased precipitation in alpine desert steppes. Previous studies mainly focused on species diversity, although phylogenetic and functional diversities are also important aspects of biodiversity. Previous studies mainly explained responses of plant diversity and soil microbial diversity to warming and increased precipitation based on niche theory, although neutral theory is also the other important mechanism in regulating biodiversity. Moreover, previous studies almost ignored the coupling relationship between plant diversity and soil microbial diversity. Therefore, the following four aspects need to be strengthened, including the responses of plant diversity and soil microbial diversity to warming and increased precipitation in alpine desert steppes, the responses of plant and soil microbial phylogenetic diversity and functional diversity to warming and increased precipitation, combining the niche theory and neutral theory to examining the mechanism of biodiversity, and the coupling relationships between plant diversity and soil microbial diversity under warming and increased precipitation.
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Affiliation(s)
- Ben Niu
- Lhasa Plateau Ecosystem Research Station, Key Laboratory of Ecosystem Network Observation and Modeling, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101, China
| | - Gang Fu
- Lhasa Plateau Ecosystem Research Station, Key Laboratory of Ecosystem Network Observation and Modeling, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101, China.
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7
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Xianbang W, Mingping L, Kunliang L, Qiang H, Dongkang P, Haibin M, Guihua H. Effects of intercropping teak with Alpinia katsumadai Hayata and Amomum longiligulare T.L. Wu on rhizosphere soil nutrients and bacterial community diversity, structure, and network. Front Microbiol 2024; 15:1328772. [PMID: 38440142 PMCID: PMC10910098 DOI: 10.3389/fmicb.2024.1328772] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2023] [Accepted: 01/29/2024] [Indexed: 03/06/2024] Open
Abstract
Teak is a precious hardwood species in tropical and subtropical regions with a long growth cycle and slow economic returns. Intercropping medicinal plants is an effective method for obtaining early returns during the growth period of teak. However, currently, we lack sufficient knowledge about the impact of intercropping on the soil microenvironment, especially on rhizosphere soil bacterial communities. We selected two medicinal plants Alpinia katsumadai Hayata and Amomum longiligulare T.L. Wu, for an intercropping experiment with teak, and the non-intercropping teak forest area was used for comparison. By collecting soil rhizosphere samples and conducting 16S rDNA sequencing and property analysis, we aimed to investigate the influence of teak intercropping on soil microbial communities. The results showed that intercropping significantly improved soil nutrients contents, such as soil organic matter, soil total potassium and soil available nitrogen, and significantly altered bacterial community structure. Co-occurrence network analysis revealed that intercropping tightened the connections of the soil bacterial network and increased its complexity (by increasing the number of nodes and the proportion of positive edges). Teak intercropping with Amomum longiligulare T.L. Wu resulted in tighter network connections than teak intercropping with A. katsumadai Hayata. Changes in the soil bacterial community structure may related to environmental factors such as total potassium content and pH. These results demonstrated that the introduction of medicinal plants exerts a significant impact on the soil bacterial community of teak, fostering the enrichment of specific bacterial taxa (such as Firmicutes and Methylomirabilota), and makes the rhizosphere bacterial network denser and more complex. This study provides valuable insights for the management of teak plantations.
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Affiliation(s)
| | | | | | | | | | - Ma Haibin
- Research Institute of Tropical Forestry, Chinese Academy of Forestry, Guangzhou, China
| | - Huang Guihua
- Research Institute of Tropical Forestry, Chinese Academy of Forestry, Guangzhou, China
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8
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Ma W, Ma L, Jiao J, Fahim AM, Wu J, Tao X, Lian Y, Li R, Li Y, Yang G, Liu L, Pu Y, Sun W, Wang W. Impact of Straw Incorporation on the Physicochemical Profile and Fungal Ecology of Saline-Alkaline Soil. Microorganisms 2024; 12:277. [PMID: 38399680 PMCID: PMC10892582 DOI: 10.3390/microorganisms12020277] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2023] [Revised: 01/18/2024] [Accepted: 01/26/2024] [Indexed: 02/25/2024] Open
Abstract
Improving the soil structure and fertility of saline-alkali land is a major issue in establishing a sustainable agro-ecosystem. To explore the potential of different straw returning in improving saline-alkaline land, we utilized native saline-alkaline soil (SCK), wheat straw-returned saline-alkaline soil (SXM) and rapeseed straw-returned saline-alkaline soil (SYC) as our research objects. Soil physicochemical properties, fungal community structure and diversity of saline-alkaline soils were investigated in different treatments at 0-10 cm, 10-20 cm and 20-30 cm soil depths. The results showed that SXM and SYC reduced soil pH and total salinity but increased soil organic matter, alkali-hydrolyzable nitrogen, available phosphorus, total potassium, etc., and the enhancement effect of SYC was more significant. The total salinity of the 0-10 cm SCK soil layer was much higher than that of the 10-30 cm soil layers. Fungal diversity and abundance were similar in different soil layers in the same treatment. SXM and SYC soil had higher fungal diversity and abundance than SCK. At the genus level, Plectosphaerella, Mortierella and Ascomycota were the dominant groups of fungal communities in SXM and SYC. The fungal diversity and abundance in SXM and SYC soils were higher than in SCK soils. Correlation network analysis of fungal communities with environmental factors showed that organic matter, alkali-hydrolyzable nitrogen and available phosphorus were the main environmental factors for the structural composition of fungal communities of Mortierella, Typhula, Wickerhamomyces, Trichosporon and Candida. In summary, straw returning to the field played an effective role in improving saline-alkaline land, improving soil fertility, affecting the structure and diversity of the fungal community and changing the interactions between microorganisms.
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Affiliation(s)
- Weiming Ma
- State Key Laboratory of Aridland Crop Science, Gansu Agricultural University, Lanzhou 730070, China; (W.M.); (J.J.); (A.M.F.); (X.T.); (Y.L.); (R.L.); (Y.L.); (G.Y.); (L.L.); (Y.P.); (W.S.); (W.W.)
- College of Agronomy, Gansu Agricultural University, Lanzhou 730070, China
| | - Li Ma
- State Key Laboratory of Aridland Crop Science, Gansu Agricultural University, Lanzhou 730070, China; (W.M.); (J.J.); (A.M.F.); (X.T.); (Y.L.); (R.L.); (Y.L.); (G.Y.); (L.L.); (Y.P.); (W.S.); (W.W.)
| | - Jintang Jiao
- State Key Laboratory of Aridland Crop Science, Gansu Agricultural University, Lanzhou 730070, China; (W.M.); (J.J.); (A.M.F.); (X.T.); (Y.L.); (R.L.); (Y.L.); (G.Y.); (L.L.); (Y.P.); (W.S.); (W.W.)
- College of Agronomy, Gansu Agricultural University, Lanzhou 730070, China
| | - Abbas Muhammad Fahim
- State Key Laboratory of Aridland Crop Science, Gansu Agricultural University, Lanzhou 730070, China; (W.M.); (J.J.); (A.M.F.); (X.T.); (Y.L.); (R.L.); (Y.L.); (G.Y.); (L.L.); (Y.P.); (W.S.); (W.W.)
- College of Agronomy, Gansu Agricultural University, Lanzhou 730070, China
| | - Junyan Wu
- State Key Laboratory of Aridland Crop Science, Gansu Agricultural University, Lanzhou 730070, China; (W.M.); (J.J.); (A.M.F.); (X.T.); (Y.L.); (R.L.); (Y.L.); (G.Y.); (L.L.); (Y.P.); (W.S.); (W.W.)
- College of Agronomy, Gansu Agricultural University, Lanzhou 730070, China
| | - Xiaolei Tao
- State Key Laboratory of Aridland Crop Science, Gansu Agricultural University, Lanzhou 730070, China; (W.M.); (J.J.); (A.M.F.); (X.T.); (Y.L.); (R.L.); (Y.L.); (G.Y.); (L.L.); (Y.P.); (W.S.); (W.W.)
- College of Agronomy, Gansu Agricultural University, Lanzhou 730070, China
| | - Yintao Lian
- State Key Laboratory of Aridland Crop Science, Gansu Agricultural University, Lanzhou 730070, China; (W.M.); (J.J.); (A.M.F.); (X.T.); (Y.L.); (R.L.); (Y.L.); (G.Y.); (L.L.); (Y.P.); (W.S.); (W.W.)
- College of Agronomy, Gansu Agricultural University, Lanzhou 730070, China
| | - Rong Li
- State Key Laboratory of Aridland Crop Science, Gansu Agricultural University, Lanzhou 730070, China; (W.M.); (J.J.); (A.M.F.); (X.T.); (Y.L.); (R.L.); (Y.L.); (G.Y.); (L.L.); (Y.P.); (W.S.); (W.W.)
- College of Agronomy, Gansu Agricultural University, Lanzhou 730070, China
| | - Yapeng Li
- State Key Laboratory of Aridland Crop Science, Gansu Agricultural University, Lanzhou 730070, China; (W.M.); (J.J.); (A.M.F.); (X.T.); (Y.L.); (R.L.); (Y.L.); (G.Y.); (L.L.); (Y.P.); (W.S.); (W.W.)
- College of Agronomy, Gansu Agricultural University, Lanzhou 730070, China
| | - Gang Yang
- State Key Laboratory of Aridland Crop Science, Gansu Agricultural University, Lanzhou 730070, China; (W.M.); (J.J.); (A.M.F.); (X.T.); (Y.L.); (R.L.); (Y.L.); (G.Y.); (L.L.); (Y.P.); (W.S.); (W.W.)
- College of Agronomy, Gansu Agricultural University, Lanzhou 730070, China
| | - Lijun Liu
- State Key Laboratory of Aridland Crop Science, Gansu Agricultural University, Lanzhou 730070, China; (W.M.); (J.J.); (A.M.F.); (X.T.); (Y.L.); (R.L.); (Y.L.); (G.Y.); (L.L.); (Y.P.); (W.S.); (W.W.)
- College of Agronomy, Gansu Agricultural University, Lanzhou 730070, China
| | - Yuanyuan Pu
- State Key Laboratory of Aridland Crop Science, Gansu Agricultural University, Lanzhou 730070, China; (W.M.); (J.J.); (A.M.F.); (X.T.); (Y.L.); (R.L.); (Y.L.); (G.Y.); (L.L.); (Y.P.); (W.S.); (W.W.)
- College of Agronomy, Gansu Agricultural University, Lanzhou 730070, China
| | - Wancang Sun
- State Key Laboratory of Aridland Crop Science, Gansu Agricultural University, Lanzhou 730070, China; (W.M.); (J.J.); (A.M.F.); (X.T.); (Y.L.); (R.L.); (Y.L.); (G.Y.); (L.L.); (Y.P.); (W.S.); (W.W.)
- College of Agronomy, Gansu Agricultural University, Lanzhou 730070, China
| | - Wangtian Wang
- State Key Laboratory of Aridland Crop Science, Gansu Agricultural University, Lanzhou 730070, China; (W.M.); (J.J.); (A.M.F.); (X.T.); (Y.L.); (R.L.); (Y.L.); (G.Y.); (L.L.); (Y.P.); (W.S.); (W.W.)
- College of Agronomy, Gansu Agricultural University, Lanzhou 730070, China
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9
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Ranheim Sveen T, Hannula SE, Bahram M. Microbial regulation of feedbacks to ecosystem change. Trends Microbiol 2024; 32:68-78. [PMID: 37500365 DOI: 10.1016/j.tim.2023.06.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2022] [Revised: 06/12/2023] [Accepted: 06/14/2023] [Indexed: 07/29/2023]
Abstract
Microbes are key biodiversity components of all ecosystems and control vital ecosystem functions. Although we have just begun to unravel the scales and factors that regulate microbial communities, their role in mediating ecosystem stability in response to disturbances remains underexplored. Here, we review evidence of how, when, and where microbes regulate or drive disturbance feedbacks. Negative feedbacks dampen the impacts of disturbance, which maintain ecosystem stability, whereas positive feedbacks instead erode stability by amplifying the disturbance. Here we describe the processes underlying the responses to disturbance using a hierarchy of functional traits, and we exemplify how these may drive biogeochemical feedbacks. We suggest that the feedback potential of functional traits at different hierarchical levels is contingent on the complexity and heterogeneity of the environment.
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Affiliation(s)
- T Ranheim Sveen
- Department of Ecology, Swedish University of Agricultural Sciences, Ulls Väg 16, 756 51 Uppsala, Sweden.
| | - S E Hannula
- Institute of Environmental Sciences, Leiden University, Leiden 2333, The Netherlands
| | - M Bahram
- Department of Ecology, Swedish University of Agricultural Sciences, Ulls Väg 16, 756 51 Uppsala, Sweden; Institute of Ecology and Earth Sciences, University of Tartu, Tartu, Estonia
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10
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Peng Z, Yang Y, Liu Y, Bu L, Qi J, Gao H, Chen S, Pan H, Chen B, Liang C, Li X, An Y, Wang S, Wei G, Jiao S. The neglected roles of adjacent natural ecosystems in maintaining bacterial diversity in agroecosystems. Glob Chang Biol 2024; 30:e16996. [PMID: 37916454 DOI: 10.1111/gcb.16996] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/12/2023] [Revised: 10/05/2023] [Accepted: 10/09/2023] [Indexed: 11/03/2023]
Abstract
A central aim of community ecology is to understand how local species diversity is shaped. Agricultural activities are reshaping and filtering soil biodiversity and communities; however, ecological processes that structure agricultural communities have often overlooked the role of the regional species pool, mainly owing to the lack of large datasets across several regions. Here, we conducted a soil survey of 941 plots of agricultural and adjacent natural ecosystems (e.g., forest, wetland, grassland, and desert) in 38 regions across diverse climatic and soil gradients to evaluate whether the regional species pool of soil microbes from adjacent natural ecosystems is important in shaping agricultural soil microbial diversity and completeness. Using a framework of multiscales community assembly, we revealed that the regional species pool was an important predictor of agricultural bacterial diversity and explained a unique variation that cannot be predicted by historical legacy, large-scale environmental factors, and local community assembly processes. Moreover, the species pool effects were associated with microbial dormancy potential, where taxa with higher dormancy potential exhibited stronger species pool effects. Bacterial diversity in regions with higher agricultural intensity was more influenced by species pool effects than that in regions with low intensity, indicating that the maintenance of agricultural biodiversity in high-intensity regions strongly depends on species present in the surrounding landscape. Models for community completeness indicated the positive effect of regional species pool, further implying the community unsaturation and increased potential in bacterial diversity of agricultural ecosystems. Overall, our study reveals the indubitable role of regional species pool from adjacent natural ecosystems in predicting bacterial diversity, which has useful implication for biodiversity management and conservation in agricultural systems.
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Affiliation(s)
- Ziheng Peng
- National Key Laboratory of Crop Improvement for Stress Tolerance and Production, Shaanxi Key Laboratory of Agricultural and Environmental Microbiology, College of Life Sciences, Northwest A&F University, Yangling, Shaanxi, China
| | - Yunfeng Yang
- State Key Joint Laboratory of Environment Simulation and Pollution Control, School of Environment, Tsinghua University, Beijing, China
| | - Yu Liu
- National Key Laboratory of Crop Improvement for Stress Tolerance and Production, Shaanxi Key Laboratory of Agricultural and Environmental Microbiology, College of Life Sciences, Northwest A&F University, Yangling, Shaanxi, China
| | - Lianyan Bu
- National Key Laboratory of Crop Improvement for Stress Tolerance and Production, Shaanxi Key Laboratory of Agricultural and Environmental Microbiology, College of Life Sciences, Northwest A&F University, Yangling, Shaanxi, China
| | - Jiejun Qi
- National Key Laboratory of Crop Improvement for Stress Tolerance and Production, Shaanxi Key Laboratory of Agricultural and Environmental Microbiology, College of Life Sciences, Northwest A&F University, Yangling, Shaanxi, China
| | - Hang Gao
- National Key Laboratory of Crop Improvement for Stress Tolerance and Production, Shaanxi Key Laboratory of Agricultural and Environmental Microbiology, College of Life Sciences, Northwest A&F University, Yangling, Shaanxi, China
| | - Shi Chen
- National Key Laboratory of Crop Improvement for Stress Tolerance and Production, Shaanxi Key Laboratory of Agricultural and Environmental Microbiology, College of Life Sciences, Northwest A&F University, Yangling, Shaanxi, China
| | - Haibo Pan
- National Key Laboratory of Crop Improvement for Stress Tolerance and Production, Shaanxi Key Laboratory of Agricultural and Environmental Microbiology, College of Life Sciences, Northwest A&F University, Yangling, Shaanxi, China
| | - Beibei Chen
- National Key Laboratory of Crop Improvement for Stress Tolerance and Production, Shaanxi Key Laboratory of Agricultural and Environmental Microbiology, College of Life Sciences, Northwest A&F University, Yangling, Shaanxi, China
| | - Chunling Liang
- National Key Laboratory of Crop Improvement for Stress Tolerance and Production, Shaanxi Key Laboratory of Agricultural and Environmental Microbiology, College of Life Sciences, Northwest A&F University, Yangling, Shaanxi, China
| | - Xiaomeng Li
- National Key Laboratory of Crop Improvement for Stress Tolerance and Production, Shaanxi Key Laboratory of Agricultural and Environmental Microbiology, College of Life Sciences, Northwest A&F University, Yangling, Shaanxi, China
| | - Yining An
- National Key Laboratory of Crop Improvement for Stress Tolerance and Production, Shaanxi Key Laboratory of Agricultural and Environmental Microbiology, College of Life Sciences, Northwest A&F University, Yangling, Shaanxi, China
| | - Shaopeng Wang
- Institute of Ecology, College of Urban and Environmental Sciences, and Key Laboratory for Earth Surface Processes of the Ministry of Education, Peking University, Beijing, China
| | - Gehong Wei
- National Key Laboratory of Crop Improvement for Stress Tolerance and Production, Shaanxi Key Laboratory of Agricultural and Environmental Microbiology, College of Life Sciences, Northwest A&F University, Yangling, Shaanxi, China
| | - Shuo Jiao
- National Key Laboratory of Crop Improvement for Stress Tolerance and Production, Shaanxi Key Laboratory of Agricultural and Environmental Microbiology, College of Life Sciences, Northwest A&F University, Yangling, Shaanxi, China
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11
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Egidi E, Coleine C, Delgado-Baquerizo M, Singh BK. Assessing critical thresholds in terrestrial microbiomes. Nat Microbiol 2023; 8:2230-2233. [PMID: 38030908 DOI: 10.1038/s41564-023-01536-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2023]
Affiliation(s)
- Eleonora Egidi
- Hawkesbury Institute for the Environment, Western Sydney University, Penrith, New South Wales, Australia.
- Global Centre for Land-Based Innovation, Western Sydney University, Penrith, New South Wales, Australia.
| | - Claudia Coleine
- Department of Ecological and Biological Sciences, University of Tuscia, Viterbo, Italy
| | - Manuel Delgado-Baquerizo
- Laboratorio de Biodiversidad y Funcionamiento Ecosistémico, Instituto de Recursos Naturales y Agrobiología de Sevilla (IRNAS), CSIC, Seville, Spain
| | - Brajesh K Singh
- Hawkesbury Institute for the Environment, Western Sydney University, Penrith, New South Wales, Australia
- Global Centre for Land-Based Innovation, Western Sydney University, Penrith, New South Wales, Australia
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12
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Liu S, Plaza C, Ochoa-Hueso R, Trivedi C, Wang J, Trivedi P, Zhou G, Piñeiro J, Martins CSC, Singh BK, Delgado-Baquerizo M. Litter and soil biodiversity jointly drive ecosystem functions. Glob Chang Biol 2023; 29:6276-6285. [PMID: 37578170 DOI: 10.1111/gcb.16913] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/26/2023] [Revised: 07/31/2023] [Accepted: 08/01/2023] [Indexed: 08/15/2023]
Abstract
The decomposition of litter and the supply of nutrients into and from the soil are two fundamental processes through which the above- and belowground world interact. Microbial biodiversity, and especially that of decomposers, plays a key role in these processes by helping litter decomposition. Yet the relative contribution of litter diversity and soil biodiversity in supporting multiple ecosystem services remains virtually unknown. Here we conducted a mesocosm experiment where leaf litter and soil biodiversity were manipulated to investigate their influence on plant productivity, litter decomposition, soil respiration, and enzymatic activity in the littersphere. We showed that both leaf litter diversity and soil microbial diversity (richness and community composition) independently contributed to explain multiple ecosystem functions. Fungal saprobes community composition was especially important for supporting ecosystem multifunctionality (EMF), plant production, litter decomposition, and activity of soil phosphatase when compared with bacteria or other fungal functional groups and litter species richness. Moreover, leaf litter diversity and soil microbial diversity exerted previously undescribed and significantly interactive effects on EMF and multiple individual ecosystem functions, such as litter decomposition and plant production. Together, our work provides experimental evidence supporting the independent and interactive roles of litter and belowground soil biodiversity to maintain ecosystem functions and multiple services.
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Affiliation(s)
- Shengen Liu
- College of Forestry, Fujian Agriculture and Forestry University, Fuzhou, China
- Yunnan Key Laboratory of Plateau Wetland Conservation, Restoration and Ecological Services, Kunming, China
- Laboratorio de Biodiversidad y Funcionamiento Ecosistémico, Instituto de Recursos Naturales y Agrobiología de Sevilla (IRNAS), CSIC, Sevilla, Spain
| | - César Plaza
- Instituto de Ciencias Agrarias (ICA), CSIC, Madrid, Spain
| | - Raúl Ochoa-Hueso
- Department of Biology, IVAGRO, University of Cádiz, Campus de Excelencia Internacional Agroalimentario (CeiA3), Cádiz, Spain
- Department of Terrestrial Ecology, Netherlands Institute of Ecology (NIOO-KNAW), Wageningen, The Netherlands
- Hawkesbury Institute for the Environment, Western Sydney University, Penrith, New South Wales, Australia
| | - Chanda Trivedi
- Hawkesbury Institute for the Environment, Western Sydney University, Penrith, New South Wales, Australia
| | - Juntao Wang
- Hawkesbury Institute for the Environment, Western Sydney University, Penrith, New South Wales, Australia
| | - Pankaj Trivedi
- Microbiome Network and Department of Agricultural Biology, Colorado State University, Fort Collins, Colorado, USA
| | - Guiyao Zhou
- Laboratorio de Biodiversidad y Funcionamiento Ecosistémico, Instituto de Recursos Naturales y Agrobiología de Sevilla (IRNAS), CSIC, Sevilla, Spain
- German Centre for Integrative Biodiversity Research (iDiv) Halle-Jena-Leipzig, Leipzig, Germany
| | - Juan Piñeiro
- Hawkesbury Institute for the Environment, Western Sydney University, Penrith, New South Wales, Australia
- ETSI Montes, Forestal y del Medio Natural, Universidad Politécnica de Madrid, Madrid, Spain
| | - Catarina S C Martins
- Hawkesbury Institute for the Environment, Western Sydney University, Penrith, New South Wales, Australia
| | - Brajesh K Singh
- Hawkesbury Institute for the Environment, Western Sydney University, Penrith, New South Wales, Australia
- Global Centre for Land-Based Innovation, Western Sydney University, Penrith, New South Wales, Australia
| | - Manuel Delgado-Baquerizo
- Laboratorio de Biodiversidad y Funcionamiento Ecosistémico, Instituto de Recursos Naturales y Agrobiología de Sevilla (IRNAS), CSIC, Sevilla, Spain
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13
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Colautti A, Civilini M, Contin M, Celotti E, Iacumin L. Organic vs. conventional: impact of cultivation treatments on the soil microbiota in the vineyard. Front Microbiol 2023; 14:1242267. [PMID: 37901804 PMCID: PMC10602642 DOI: 10.3389/fmicb.2023.1242267] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2023] [Accepted: 09/27/2023] [Indexed: 10/31/2023] Open
Abstract
The aim of this study was to compare the effects of two vineyard management practices on the soil and its associated microbiota. The experiments were conducted in two adjacent plots, one completely organically managed and the other conventionally managed in terms of phytosanitary treatments but fertilized with organic amendments. The chemical soil analyses were correlated to the prokaryotic and fungal communities, which were studied using the metabarcoding technique. The main difference between the two treatments was a significantly higher amount of Cu in the organic managed vineyard soil, while conventional managed soil presented higher concentration of Na and Mg and was also associated with higher pH values. Despite these differences, no significant diversities were observed on soil biodiversity and microbial composition considering alpha and beta diversity metrics. However, the percentages of some phyla analyzed individually differed significantly between the two managements. Analyzing the metabolisms of these phyla, it was discovered an increment of species correlated to soils with higher organic matter content or land not used for agricultural purposes in the organic treated soil. The findings indicate that, despite the use of copper-based phytosanitary products, there was no degradation and loss of biodiversity in the organic soil microbial population compared to conventional management with the same type of fertilization, and the observed microbial population was more similar to that of natural soils.
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Affiliation(s)
| | | | | | | | - Lucilla Iacumin
- Department of Agricultural, Food, Environmental and Animal Science, University of Udine, Udine, Italy
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14
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Du S, Li XQ, Feng J, Huang Q, Liu YR. Soil core microbiota drive community resistance to mercury stress and maintain functional stability. Sci Total Environ 2023; 894:165056. [PMID: 37348729 DOI: 10.1016/j.scitotenv.2023.165056] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/21/2023] [Revised: 06/14/2023] [Accepted: 06/19/2023] [Indexed: 06/24/2023]
Abstract
Soil microbial communities have resistance to environmental stresses and thus can maintain ecosystem functions such as decomposition, nutrient provisioning, and plant pathogen control. However, predominant factors driving community resistance of soil microbiome to heavy metal pollution stresses and ecosystem functional stability are still unclear, limiting our ability to forecast how soil pollution might affect ecosystem sustainability. Here, we conducted microcosm experiments to estimate the importance of soil microbiome in predicting community resistance to heavy metal mercury (Hg) stress in paired paddy and upland fields. We found that community resistance of soil microbiome was strongly correlated with ecosystem functional stability, so were the individual groups of organisms such as bacteria, saprotrophic fungi, and phototrophic protists. The core phylotypes within soil microbiome had a major contribution to community resistance, which was essential for the maintenance of functional stability. Co-occurrence network further confirmed that community resistances of main ecological clusters were positively correlated with ecosystem functional stability. Together, our results provide new insights into the link between community resistance and functional stability, and highlight the importance of core microbiota in driving community resistance to environmental stresses and maintain functional stability.
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Affiliation(s)
- Shuai Du
- Key Laboratory of Urban Environment and Health, Ningbo Urban Environment Observation and Research Station, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, China; College of Resources and Environment, Huazhong Agricultural University, Wuhan 430070, China
| | - Xin-Qi Li
- College of Resources and Environment, Huazhong Agricultural University, Wuhan 430070, China
| | - Jiao Feng
- College of Resources and Environment, Huazhong Agricultural University, Wuhan 430070, China
| | - Qiaoyun Huang
- College of Resources and Environment, Huazhong Agricultural University, Wuhan 430070, China; Hubei Key Laboratory of Soil Environment and Pollution Remediation, Huazhong Agricultural University, Wuhan 430070, China
| | - Yu-Rong Liu
- College of Resources and Environment, Huazhong Agricultural University, Wuhan 430070, China; Hubei Key Laboratory of Soil Environment and Pollution Remediation, Huazhong Agricultural University, Wuhan 430070, China.
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15
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Yang X, Li Y, Liang R, Ji B, Wang Z, Wang H, Shen Y. Negative effects of phosphorus addition outweigh effects of arbuscular mycorrhizal fungi and nitrogen addition on grassland temporal stability in the eastern Eurasian desert steppe. Ecol Evol 2023; 13:e10368. [PMID: 37546567 PMCID: PMC10401164 DOI: 10.1002/ece3.10368] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2023] [Revised: 07/15/2023] [Accepted: 07/18/2023] [Indexed: 08/08/2023] Open
Abstract
The temporal stability of grassland plant communities is substantially affected by soil nutrient enrichment. However, the potential main and interactive effects of arbuscular mycorrhizal fungi (AMF) and soil nitrogen (N) and phosphorus (P) enrichment on the stability of plant productivity have not yet been clarified. We combined a three-year in situ field experiment to assess the impacts of soil fertilization and AMF on the stability of plant productivity. P addition decreased the stability of plant productivity by increasing the standard deviation relative to the mean of plant productivity. However, compared to species richness, the stability of C3 grasses and other functional groups asynchrony were the most important drivers changing the stability of plant productivity. The negative impacts of P addition overrode the impacts of AMF on the stability of plant productivity. Overall, our study suggests the importance of soil nutrient availability over AMF in terms of shaping the stability of plant productivity. Our results also suggest that three-year anthropogenic soil nutrient enrichment could reduce the stability of plant communities in grassland regardless of AMF in the P-limited grassland ecosystem.
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Affiliation(s)
- Xin Yang
- College of Forestry and PratacultureNingxia UniversityYinchuanChina
- Ningxia Grassland and Animal Husbandry Engineering Technology Research CenterYinchuanChina
| | - Yuyue Li
- College of Forestry and PratacultureNingxia UniversityYinchuanChina
- Ningxia Grassland and Animal Husbandry Engineering Technology Research CenterYinchuanChina
| | - Ruize Liang
- College of Forestry and PratacultureNingxia UniversityYinchuanChina
- Ningxia Grassland and Animal Husbandry Engineering Technology Research CenterYinchuanChina
| | - Bo Ji
- Institute of Forestry and Grassland EcologyNingxia Academy of Agriculture and Forestry SciencesYinchuanChina
| | - Zhanjun Wang
- Institute of Forestry and Grassland EcologyNingxia Academy of Agriculture and Forestry SciencesYinchuanChina
| | - Hongmei Wang
- College of Forestry and PratacultureNingxia UniversityYinchuanChina
- Ningxia Grassland and Animal Husbandry Engineering Technology Research CenterYinchuanChina
| | - Yue Shen
- College of Forestry and PratacultureNingxia UniversityYinchuanChina
- Ningxia Grassland and Animal Husbandry Engineering Technology Research CenterYinchuanChina
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16
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Shu X, Liu W, Hu Y, Xia L, Fan K, Zhang Y, Zhang Y, Zhou W. Ecosystem multifunctionality and soil microbial communities in response to ecological restoration in an alpine degraded grassland. Front Plant Sci 2023; 14:1173962. [PMID: 37593047 PMCID: PMC10431941 DOI: 10.3389/fpls.2023.1173962] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/25/2023] [Accepted: 07/07/2023] [Indexed: 08/19/2023]
Abstract
Linkages between microbial communities and multiple ecosystem functions are context-dependent. However, the impacts of different restoration measures on microbial communities and ecosystem functioning remain unclear. Here, a 14-year long-term experiment was conducted using three restoration modes: planting mixed grasses (MG), planting shrub with Salix cupularis alone (SA), and planting shrub with Salix cupularis plus planting mixed grasses (SG), with an extremely degraded grassland serving as the control (CK). Our objective was to investigate how ecosystem multifunctionality and microbial communities (diversity, composition, and co-occurrence networks) respond to different restoration modes. Our results indicated that most of individual functions (i.e., soil nutrient contents, enzyme activities, and microbial biomass) in the SG treatment were significantly higher than in the CK treatment, and even higher than MG and SA treatments. Compared with the CK treatment, treatments MG, SA, and SG significantly increased the multifunctionality index on average by 0.57, 0.23 and 0.76, respectively. Random forest modeling showed that the alpha-diversity and composition of bacterial communities, rather than fungal communities, drove the ecosystem multifunctionality. Moreover, we found that both the MG and SG treatments significantly improved bacterial network stability, which exhabited stronger correlations with ecosystem multifunctionality compared to fungal network stability. In summary, this study demonstrates that planting shrub and grasses altogether is a promising restoration mode that can enhance ecosystem multifunctionality and improve microbial diversity and stability in the alpine degraded grassland.
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Affiliation(s)
- Xiangyang Shu
- College of Resources, Sichuan Agricultural University, Chengdu, China
| | - Weijia Liu
- Institute of Agricultural Bioenvironment and Energy, Chengdu Academy of Agriculture and Forestry Sciences, Chengdu, China
| | - Yufu Hu
- College of Resources, Sichuan Agricultural University, Chengdu, China
| | - Longlong Xia
- Institute for Meteorology and Climate Research (IMK-IFU), Karlsruhe Institute of Technology, Garmisch-Partenkirchen, Germany
| | - Kunkun Fan
- State Key Laboratory of Soil and Sustainable Agriculture, Institute of Soil Science, Chinese Academy of Sciences, Nanjing, China
| | - Yanyan Zhang
- College of Resources, Sichuan Agricultural University, Chengdu, China
| | - Yulin Zhang
- Department of Civil Engineering, The University of Hong Kong, Hong Kong SAR, China
| | - Wei Zhou
- College of Resources, Sichuan Agricultural University, Chengdu, China
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17
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Zhang J, Feng Y, Maestre FT, Berdugo M, Wang J, Coleine C, Sáez-Sandino T, García-Velázquez L, Singh BK, Delgado-Baquerizo M. Water availability creates global thresholds in multidimensional soil biodiversity and functions. Nat Ecol Evol 2023; 7:1002-1011. [PMID: 37169879 DOI: 10.1038/s41559-023-02071-3] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2022] [Accepted: 04/17/2023] [Indexed: 05/13/2023]
Abstract
Soils support an immense portion of Earth's biodiversity and maintain multiple ecosystem functions which are essential for human well-being. Environmental thresholds are known to govern global vegetation patterns, but it is still unknown whether they can be used to predict the distribution of soil organisms and functions across global biomes. Using a global field survey of 383 sites across contrasting climatic and vegetation conditions, here we showed that soil biodiversity and functions exhibited pervasive nonlinear patterns worldwide and are mainly governed by water availability (precipitation and potential evapotranspiration). Changes in water availability resulted in drastic shifts in soil biodiversity (bacteria, fungi, protists and invertebrates) and soil functions including plant-microbe interactions, plant productivity, soil biogeochemical cycles and soil carbon sequestration. Our findings highlight that crossing specific water availability thresholds can have critical consequences for the provision of essential ecosystem services needed to sustain our planet.
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Affiliation(s)
- Jianwei Zhang
- College of Chemical Engineering, Nanjing Forestry University, Nanjing, China
- State Key Laboratory of Soil and Sustainable Agriculture, Institute of Soil Science, Chinese Academy of Sciences, Nanjing, China
| | - Youzhi Feng
- College of Chemical Engineering, Nanjing Forestry University, Nanjing, China.
- State Key Laboratory of Soil and Sustainable Agriculture, Institute of Soil Science, Chinese Academy of Sciences, Nanjing, China.
- Jiangsu Collaborative Innovation Center for Solid Organic Waste Resource Utilization, Nanjing, China.
| | - Fernando T Maestre
- Instituto Multidisciplinar para el Estudio del Medio 'Ramón Margalef', Universidad de Alicante, Alicante, Spain
- Departamento de Ecología, Universidad de Alicante, Alicante, Spain
| | - Miguel Berdugo
- Department of Environment Systems Science, Institute of Integrative Biology, ETH Zürich, Zürich, Switzerland
- Depatamento de Biodiversidad, Ecología y Evolución, Universidad Complutense de Madrid, Madrid, Spain
| | - Juntao Wang
- Global Centre for Land-Based Innovation, Western Sydney University, Penrith, New South Wales, Australia
- Hawkesbury Institute for the Environment, Western Sydney University, Richmond, New South Wales, Australia
- State Key Laboratory of Urban and Regional Ecology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, China
| | - Claudia Coleine
- Department of Ecological and Biological Sciences, University of Tuscia, Viterbo, Italy
| | - Tadeo Sáez-Sandino
- Departamento de Sistemas Físicos, Químicos y Naturales, Universidad Pablo de Olavide, Sevilla, Spain
| | - Laura García-Velázquez
- Departamento de Sistemas Físicos, Químicos y Naturales, Universidad Pablo de Olavide, Sevilla, Spain
| | - Brajesh K Singh
- Global Centre for Land-Based Innovation, Western Sydney University, Penrith, New South Wales, Australia
- Hawkesbury Institute for the Environment, Western Sydney University, Richmond, New South Wales, Australia
| | - Manuel Delgado-Baquerizo
- Laboratorio de Biodiversidad y Funcionamiento Ecosistémico, Instituto de Recursos Naturales y Agrobiología de Sevilla (IRNAS), CSIC, Sevilla, Spain.
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18
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Wu L, Chen H, Chen D, Wang S, Wu Y, Wang B, Liu S, Yue L, Yu J, Bai Y. Soil biota diversity and plant diversity both contributed to ecosystem stability in grasslands. Ecol Lett 2023; 26:858-868. [PMID: 36922741 DOI: 10.1111/ele.14202] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2022] [Revised: 02/17/2023] [Accepted: 02/21/2023] [Indexed: 03/17/2023]
Abstract
Understanding the effects of diversity on ecosystem stability in the context of global change has become an important goal of recent ecological research. However, the effects of diversity at multiple scales and trophic levels on ecosystem stability across environmental gradients remain unclear. Here, we conducted a field survey of α-, β-, and γ-diversity of plants and soil biota (bacteria, fungi, and nematodes) and estimated the temporal ecosystem stability of normalized difference vegetation index (NDVI) in 132 plots on the Mongolian Plateau. After climate and soil environmental variables were controlled for, both the α- and β-diversity of plants and soil biota (mainly via nematodes) together with precipitation explained most variation in ecosystem stability. These findings evidence that the diversity of both soil biota and plants contributes to ecosystem stability. Model predictions of the future effects of global changes on terrestrial ecosystem stability will require field observations of diversity of both plants and soil biota.
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Affiliation(s)
- Liji Wu
- College of Hydraulic and Environmental Engineering, China Three Gorges University, Yichang, China.,Engineering Research Center of Eco-Environment in Three Gorges Reservoir Region of Ministry of Education, China Three Gorges University, Yichang, China.,College of Biological and Pharmaceutical Sciences, China Three Gorges University, Yichang, China
| | - Huasong Chen
- College of Biological and Pharmaceutical Sciences, China Three Gorges University, Yichang, China
| | - Dima Chen
- College of Hydraulic and Environmental Engineering, China Three Gorges University, Yichang, China.,Engineering Research Center of Eco-Environment in Three Gorges Reservoir Region of Ministry of Education, China Three Gorges University, Yichang, China.,College of Biological and Pharmaceutical Sciences, China Three Gorges University, Yichang, China
| | - Shaopeng Wang
- Institute of Ecology, College of Urban and Environmental Sciences, and Key Laboratory for Earth Surface Processes of the Ministry of Education, Peking University, Beijing, China
| | - Ying Wu
- College of Biological and Pharmaceutical Sciences, China Three Gorges University, Yichang, China
| | - Bing Wang
- College of Biological and Pharmaceutical Sciences, China Three Gorges University, Yichang, China
| | - Shengen Liu
- College of Biological and Pharmaceutical Sciences, China Three Gorges University, Yichang, China
| | - Linyan Yue
- College of Biological and Pharmaceutical Sciences, China Three Gorges University, Yichang, China
| | - Jie Yu
- Institute of Grassland Research, Chinese Academy of Agricultural Sciences, Hohhot, China
| | - Yongfei Bai
- State Key Laboratory of Vegetation and Environmental Change, Institute of Botany, Chinese Academy of Sciences, Beijing, China.,University of Chinese Academy of Sciences, Beijing, China
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19
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Wang M, Qi X, Shi Y, Zhao J, Ahmad S, Akhtar K, Chen B, Lian T, He B, Wen R. Sugarcane straw returning is an approaching technique for the improvement of rhizosphere soil functionality, microbial community, and yield of different sugarcane cultivars. Front Microbiol 2023; 14:1133973. [PMID: 36998394 PMCID: PMC10043380 DOI: 10.3389/fmicb.2023.1133973] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2023] [Accepted: 02/24/2023] [Indexed: 03/15/2023] Open
Abstract
Sugarcane straw returned to the field has rapidly increased due to the bane on straw burning in China. Straw returning of new sugarcane cultivars has been practiced in the fields. Still, its response has not been explored on soil functionality, microbial community and yield of different sugarcane cultivars. Therefore, a comparison was made between an old sugarcane cultivar ROC22 and a new sugarcane cultivar Zhongzhe9 (Z9). The experimental treatments were: without (R, Z), with straw of the same cultivar (RR, ZZ), and with straw of different cultivars (RZ, ZR). Straw returning improved the contents of soil total nitrogen (TN by 73.21%), nitrate nitrogen (NO3—N by 119.61%), soil organic carbon (SOC by 20.16%), and available potassium (AK by 90.65%) at the jointing stage and were not significant at the seedling stage. The contents of NO3—N was 31.94 and 29.58%, available phosphorus (AP 53.21 and 27.19%), and available potassium (AK 42.43 and 11.92%) in RR and ZZ were more than in RZ and ZR. Straw returning with the same cultivar (RR, ZZ) significantly increased the richness and diversity of the rhizosphere microbial community. The microbial diversity of cultivar Z9 (treatment Z) was greater than that of cultivar ROC22 (Treatment R). In the rhizosphere, the relative abundance of beneficial microorganisms Gemmatimonadaceae, Trechispora, Streptomyces, Chaetomium, etc., increased after the straw returned. Sugarcane straw enhanced the activity of Pseudomonas and Aspergillus and thus increased the yield of sugarcane., The richness and diversity of the rhizosphere microbial community of Z9 increased at maturity. In ROC22, bacterial diversity increased, and fungal diversity decreased. These findings collectively suggested that the impact of Z9 straw returning was more beneficial than ROC22 on the activity of rhizosphere microorganism’s soil functionality and sugarcane production.
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Affiliation(s)
- Mengrong Wang
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, College of Life Science and Technology, Ministry and Province Co-sponsored Collaborative Innovation Center for Sugarcane and Sugar Industry, Guangxi Key Laboratory of Sugarcane Biology, Guangxi University, Nanning, China
| | - Xiaohang Qi
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, College of Life Science and Technology, Ministry and Province Co-sponsored Collaborative Innovation Center for Sugarcane and Sugar Industry, Guangxi Key Laboratory of Sugarcane Biology, Guangxi University, Nanning, China
| | - Yujie Shi
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, College of Life Science and Technology, Ministry and Province Co-sponsored Collaborative Innovation Center for Sugarcane and Sugar Industry, Guangxi Key Laboratory of Sugarcane Biology, Guangxi University, Nanning, China
| | - Junyang Zhao
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, College of Life Science and Technology, Ministry and Province Co-sponsored Collaborative Innovation Center for Sugarcane and Sugar Industry, Guangxi Key Laboratory of Sugarcane Biology, Guangxi University, Nanning, China
| | - Shakeel Ahmad
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, College of Life Science and Technology, Ministry and Province Co-sponsored Collaborative Innovation Center for Sugarcane and Sugar Industry, Guangxi Key Laboratory of Sugarcane Biology, Guangxi University, Nanning, China
| | - Kashif Akhtar
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, College of Life Science and Technology, Ministry and Province Co-sponsored Collaborative Innovation Center for Sugarcane and Sugar Industry, Guangxi Key Laboratory of Sugarcane Biology, Guangxi University, Nanning, China
| | - Baoshan Chen
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, College of Life Science and Technology, Ministry and Province Co-sponsored Collaborative Innovation Center for Sugarcane and Sugar Industry, Guangxi Key Laboratory of Sugarcane Biology, Guangxi University, Nanning, China
- Guangxi Key Laboratory of Agro-Environment and Agric-Products Safety, College of Agriculture, Guangxi University, Nanning, China
| | - Tengxiang Lian
- The Key Laboratory of Plant Molecular Breeding of Guangdong Province, College of Agriculture, South China Agricultural University, Guangzhou, China
| | - Bing He
- Guangxi Key Laboratory of Agro-Environment and Agric-Products Safety, College of Agriculture, Guangxi University, Nanning, China
- *Correspondence: Bing He,
| | - Ronghui Wen
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, College of Life Science and Technology, Ministry and Province Co-sponsored Collaborative Innovation Center for Sugarcane and Sugar Industry, Guangxi Key Laboratory of Sugarcane Biology, Guangxi University, Nanning, China
- Ronghui Wen,
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20
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He S, Xiong K, Song S, Chi Y, Fang J, He C. Research Progress of Grassland Ecosystem Structure and Stability and Inspiration for Improving Its Service Capacity in the Karst Desertification Control. Plants (Basel) 2023; 12:770. [PMID: 36840118 PMCID: PMC9959505 DOI: 10.3390/plants12040770] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/11/2023] [Revised: 02/04/2023] [Accepted: 02/05/2023] [Indexed: 06/18/2023]
Abstract
The structure and stability of grassland ecosystems have a significant impact on biodiversity, material cycling and productivity for ecosystem services. However, the issue of the structure and stability of grassland ecosystems has not been systematically reviewed. Based on the Web of Science (WOS) and China National Knowledge Infrastructure (CNKI) databases, we used the systematic-review method and screened 133 papers to describe and analyze the frontiers of research into the structure and stability of grassland ecosystems. The research results showed that: (1) The number of articles about the structure and stability of grassland ecosystems is gradually increasing, and the research themes are becoming increasingly diverse. (2) There is a high degree of consistency between the study area and the spatial distribution of grassland. (3) Based on the changes in ecosystem patterns and their interrelationships with ecosystem processes, we reviewed the research progress and landmark results on the structure, stability, structure-stability relationship and their influencing factors of grassland ecosystems; among them, the study of structure is the main research focus (51.12%), followed by the study of the influencing factors of structure and stability (37.57%). (4) Key scientific questions on structural optimization, stability enhancement and harmonizing the relationship between structure and stability are explored. (5) Based on the background of karst desertification control (KDC) and its geographical characteristics, three insights are proposed to optimize the spatial allocation, enhance the stability of grassland for rocky desertification control and coordinate the regulation mechanism of grassland structure and stability. This study provided some references for grassland managers and relevant policy makers to optimize the structure and enhance the stability of grassland ecosystems. It also provided important insights to enhance the service capacity of grassland ecosystems in KDC.
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Affiliation(s)
- Shuyu He
- School of Karst Science, Guizhou Normal University, Guiyang 550001, China
- State Engineering Technology Institute for Karst Desertification Control of China, 116 Baoshan North Road, Guiyang 550001, China
| | - Kangning Xiong
- School of Karst Science, Guizhou Normal University, Guiyang 550001, China
- State Engineering Technology Institute for Karst Desertification Control of China, 116 Baoshan North Road, Guiyang 550001, China
| | - Shuzhen Song
- School of Karst Science, Guizhou Normal University, Guiyang 550001, China
- State Engineering Technology Institute for Karst Desertification Control of China, 116 Baoshan North Road, Guiyang 550001, China
| | - Yongkuan Chi
- School of Karst Science, Guizhou Normal University, Guiyang 550001, China
- State Engineering Technology Institute for Karst Desertification Control of China, 116 Baoshan North Road, Guiyang 550001, China
| | - Jinzhong Fang
- School of Karst Science, Guizhou Normal University, Guiyang 550001, China
- State Engineering Technology Institute for Karst Desertification Control of China, 116 Baoshan North Road, Guiyang 550001, China
| | - Chen He
- School of Karst Science, Guizhou Normal University, Guiyang 550001, China
- State Engineering Technology Institute for Karst Desertification Control of China, 116 Baoshan North Road, Guiyang 550001, China
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21
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Mishra A, Singh L, Singh D. Unboxing the black box-one step forward to understand the soil microbiome: A systematic review. Microb Ecol 2023; 85:669-683. [PMID: 35112151 PMCID: PMC9957845 DOI: 10.1007/s00248-022-01962-5] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/03/2021] [Accepted: 01/10/2022] [Indexed: 06/14/2023]
Abstract
Soil is one of the most important assets of the planet Earth, responsible for maintaining the biodiversity and managing the ecosystem services for both managed and natural ecosystems. It encompasses large proportion of microscopic biodiversity, including prokaryotes and the microscopic eukaryotes. Soil microbiome is critical in managing the soil functions, but their activities have diminutive recognition in few systems like desert land and forest ecosystems. Soil microbiome is highly dependent on abiotic and biotic factors like pH, carbon content, soil structure, texture, and vegetation, but it can notably vary with ecosystems and the respective inhabitants. Thus, unboxing this black box is essential to comprehend the basic components adding to the soil systems and supported ecosystem services. Recent advancements in the field of molecular microbial ecology have delivered commanding tools to examine this genetic trove of soil biodiversity. Objective of this review is to provide a critical evaluation of the work on the soil microbiome, especially since the advent of the NGS techniques. The review also focuses on advances in our understanding of soil communities, their interactions, and functional capabilities along with understanding their role in maneuvering the biogeochemical cycle while underlining and tapping the unprecedented metagenomics data to infer the ecological attributes of yet undiscovered soil microbiome. This review focuses key research directions that could shape the future of basic and applied research into the soil microbiome. This review has led us to understand that it is difficult to generalize that soil microbiome plays a substantiated role in shaping the soil networks and it is indeed a vital resource for sustaining the ecosystem functioning. Exploring soil microbiome will help in unlocking their roles in various soil network. It could be resourceful in exploring and forecasting its impacts on soil systems and for dealing with alleviating problems like rapid climate change.
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Affiliation(s)
- Apurva Mishra
- Academy of Scientific and Innovative Research [AcSIR], Ghaziabad, 201002, India
- Environmental Biotechnology and Genomics Division, , CSIR-National Environmental Engineering Research Institute, Nehru Marg, Nagpur, 440020, Maharashtra, India
| | - Lal Singh
- Environmental Biotechnology and Genomics Division, , CSIR-National Environmental Engineering Research Institute, Nehru Marg, Nagpur, 440020, Maharashtra, India
| | - Dharmesh Singh
- Institute for Medical Microbiology, Immunology and Hygiene, Technical University of Munich, Trogerstrasse 30, 81675, Munich, Bavaria, Germany.
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22
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Zhang H, Dong L, Yao X, Wang W. Soil fertility shifts the relative importance of saprotrophic and mycorrhizal fungi for maintaining ecosystem stability. Glob Chang Biol 2023; 29:1206-1216. [PMID: 36423217 DOI: 10.1111/gcb.16540] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/17/2022] [Accepted: 11/21/2022] [Indexed: 06/16/2023]
Abstract
Soil microbial communities are essential for regulating the dynamics of plant productivity. However, how soil microbes mediate temporal stability of plant productivity at large scales across various soil fertility conditions remains unclear. Here, we combined a regional survey of 51 sites in the temperate grasslands of northern China with a global grassland survey of 120 sites to assess the potential roles of soil microbial diversity in regulating ecosystem stability. The temporal stability of plant productivity was quantified as the ratio of the mean normalized difference vegetation index to its standard deviation. Soil fungal diversity, but not bacterial diversity, was positively associated with ecosystem stability, and particular fungal functional groups determined ecosystem stability under contrasting conditions of soil fertility. The richness of soil fungal saprobes was positively correlated with ecosystem stability under high-fertility conditions, while a positive relationship was observed with the richness of mycorrhizal fungi under low-fertility conditions. These relationships were maintained after accounting for plant diversity and environmental factors. Our findings highlight the essential role of fungal diversity in maintaining stable grassland productivity, and suggest that future studies incorporating fungal functional groups into biodiversity-stability relationships will advance our understanding of their linkages under different fertility conditions.
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Affiliation(s)
- Hongjin Zhang
- Department of Ecology, College of Urban and Environmental Sciences and Key Laboratory for Earth Surface Processes of the Ministry of Education, Peking University, Beijing, China
| | - Lizheng Dong
- Department of Ecology, College of Urban and Environmental Sciences and Key Laboratory for Earth Surface Processes of the Ministry of Education, Peking University, Beijing, China
| | - Xiaodong Yao
- Department of Ecology, College of Urban and Environmental Sciences and Key Laboratory for Earth Surface Processes of the Ministry of Education, Peking University, Beijing, China
- State Key Laboratory for Subtropical Mountain Ecology of the Ministry of Science and Technology and Fujian Province, School of Geographical Sciences, Fujian Normal University, Fuzhou, China
| | - Wei Wang
- Department of Ecology, College of Urban and Environmental Sciences and Key Laboratory for Earth Surface Processes of the Ministry of Education, Peking University, Beijing, China
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23
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Giovannetti M, Salvioli di Fossalunga A, Stringlis IA, Proietti S, Fiorilli V. Unearthing soil-plant-microbiota crosstalk: Looking back to move forward. Front Plant Sci 2023; 13:1082752. [PMID: 36762185 PMCID: PMC9902496 DOI: 10.3389/fpls.2022.1082752] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/28/2022] [Accepted: 12/29/2022] [Indexed: 06/18/2023]
Abstract
The soil is vital for life on Earth and its biodiversity. However, being a non-renewable and threatened resource, preserving soil quality is crucial to maintain a range of ecosystem services critical to ecological balances, food production and human health. In an agricultural context, soil quality is often perceived as the ability to support field production, and thus soil quality and fertility are strictly interconnected. The concept of, as well as the ways to assess, soil fertility has undergone big changes over the years. Crop performance has been historically used as an indicator for soil quality and fertility. Then, analysis of a range of physico-chemical parameters has been used to routinely assess soil quality. Today it is becoming evident that soil quality must be evaluated by combining parameters that refer both to the physico-chemical and the biological levels. However, it can be challenging to find adequate indexes for evaluating soil quality that are both predictive and easy to measure in situ. An ideal soil quality assessment method should be flexible, sensitive enough to detect changes in soil functions, management and climate, and should allow comparability among sites. In this review, we discuss the current status of soil quality indicators and existing databases of harmonized, open-access topsoil data. We also explore the connections between soil biotic and abiotic features and crop performance in an agricultural context. Finally, based on current knowledge and technical advancements, we argue that the use of plant health traits represents a powerful way to assess soil physico-chemical and biological properties. These plant health parameters can serve as proxies for different soil features that characterize soil quality both at the physico-chemical and at the microbiological level, including soil quality, fertility and composition of soil microbial communities.
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Affiliation(s)
- Marco Giovannetti
- Department of Biology, University of Padova, Padova, Italy
- Department of Life Sciences and Systems Biology, University of Turin, Turin, Italy
| | | | - Ioannis A. Stringlis
- Plant - Microbe Interactions, Department of Biology, Science4Life, Utrecht University, Utrecht, Netherlands
| | - Silvia Proietti
- Department of Ecological and Biological Sciences, University of Tuscia, Viterbo, Italy
| | - Valentina Fiorilli
- Department of Life Sciences and Systems Biology, University of Turin, Turin, Italy
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24
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Wu H, Yang J, Fu W, Rillig MC, Cao Z, Zhao A, Hao Z, Zhang X, Chen B, Han X. Identifying thresholds of nitrogen enrichment for substantial shifts in arbuscular mycorrhizal fungal community metrics in a temperate grassland of northern China. New Phytol 2023; 237:279-294. [PMID: 36177721 DOI: 10.1111/nph.18516] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/12/2022] [Accepted: 09/12/2022] [Indexed: 06/16/2023]
Abstract
Nitrogen (N) enrichment poses threats to biodiversity and ecosystem stability, while arbuscular mycorrhizal (AM) fungi play important roles in ecosystem stability and functioning. However, the ecological impacts, especially thresholds of N enrichment potentially causing AM fungal community shifts have not been adequately characterized. Based on a long-term field experiment with nine N addition levels ranging from 0 to 50 g N m-2 yr-1 in a temperate grassland, we characterized the community response patterns of AM fungi to N enrichment. Arbuscular mycorrhizal fungal biomass continuously decreased with increasing N addition levels. However, AM fungal diversity did not significantly change below 20 g N m-2 yr-1 , but dramatically decreased at higher N levels, which drove the AM fungal community to a potentially unstable state. Structural equation modeling showed that the decline in AM fungal biomass could be well explained by soil acidification, whereas key driving factors for AM fungal diversity shifted from soil nitrogen : phosphorus (N : P) ratio to soil pH with increasing N levels. Different aspects of AM fungal communities (biomass, diversity and community composition) respond differently to increasing N addition levels. Thresholds for substantial community shifts in response to N enrichment in this grassland ecosystem are identified.
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Affiliation(s)
- Hui Wu
- State Key Laboratory of Urban and Regional Ecology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Junjie Yang
- State Key Laboratory of Vegetation and Environmental Change, Institute of Botany, Chinese Academy of Sciences, Beijing, 100093, China
| | - Wei Fu
- State Key Laboratory of Urban and Regional Ecology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Matthias C Rillig
- Institute of Biology, Freie Universität Berlin, Berlin, 14195, Germany
- Berlin-Brandenburg Institute of Advanced Biodiversity Research (BBIB), Berlin, 14195, Germany
| | - Zhenjiao Cao
- State Key Laboratory of Urban and Regional Ecology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, China
| | - Aihua Zhao
- State Key Laboratory of Urban and Regional Ecology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, China
| | - Zhipeng Hao
- State Key Laboratory of Urban and Regional Ecology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, China
| | - Xin Zhang
- State Key Laboratory of Urban and Regional Ecology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, China
| | - Baodong Chen
- State Key Laboratory of Urban and Regional Ecology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Xingguo Han
- University of Chinese Academy of Sciences, Beijing, 100049, China
- State Key Laboratory of Vegetation and Environmental Change, Institute of Botany, Chinese Academy of Sciences, Beijing, 100093, China
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25
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Abrahão A, Marhan S, Boeddinghaus RS, Nawaz A, Wubet T, Hölzel N, Klaus VH, Kleinebecker T, Freitag M, Hamer U, Oliveira RS, Lambers H, Kandeler E. Microbial drivers of plant richness and productivity in a grassland restoration experiment along a gradient of land-use intensity. New Phytol 2022; 236:1936-1950. [PMID: 36128644 DOI: 10.1111/nph.18503] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/21/2022] [Accepted: 08/22/2022] [Indexed: 06/15/2023]
Abstract
Plant-soil feedbacks (PSFs) underlying grassland plant richness and productivity are typically coupled with nutrient availability; however, we lack understanding of how restoration measures to increase plant diversity might affect PSFs. We examined the roles of sward disturbance, seed addition and land-use intensity (LUI) on PSFs. We conducted a disturbance and seed addition experiment in 10 grasslands along a LUI gradient and characterized plant biomass and richness, soil microbial biomass, community composition and enzyme activities. Greater plant biomass at high LUI was related to a decrease in the fungal to bacterial ratios, indicating highly productive grasslands to be dominated by bacteria. Lower enzyme activity per microbial biomass at high plant species richness indicated a slower carbon (C) cycling. The relative abundance of fungal saprotrophs decreased, while pathogens increased with LUI and disturbance. Both fungal guilds were negatively associated with plant richness, indicating the mechanisms underlying PSFs depended on LUI. We show that LUI and disturbance affect fungal functional composition, which may feedback on plant species richness by impeding the establishment of pathogen-sensitive species. Therefore, we highlight the need to integrate LUI including its effects on PSFs when planning for practices that aim to optimize plant diversity and productivity.
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Affiliation(s)
- Anna Abrahão
- Department of Soil Biology, Institute of Soil Science and Land Evaluation, University of Hohenheim, 70599, Stuttgart, Germany
- Department of Biology, Science Center, Federal University of Ceará - UFC, Fortaleza, CE, 60440-900, Brazil
| | - Sven Marhan
- Department of Soil Biology, Institute of Soil Science and Land Evaluation, University of Hohenheim, 70599, Stuttgart, Germany
| | - Runa S Boeddinghaus
- Department of Soil Biology, Institute of Soil Science and Land Evaluation, University of Hohenheim, 70599, Stuttgart, Germany
- Landwirtschaftliches Technologiezentrum Augustenberg, 76227, Karlsruhe, Germany
| | - Ali Nawaz
- Department of Community Ecology, UFZ - Helmholtz Center for Environmental Research, 06120, Halle (Saale), Germany
- Department of Civil, Geo and Environmental Engineering, Technical University of Munich, Am Coulombwall 3, 85748, Garching, Germany
| | - Tesfaye Wubet
- Department of Community Ecology, UFZ - Helmholtz Center for Environmental Research, 06120, Halle (Saale), Germany
- German Center for Integrative Biodiversity Research (iDiv) Halle-Jena-Leipzig, Deutscher Platz 5e, 04103, Leipzig, Germany
| | - Norbert Hölzel
- Institute of Landscape Ecology, University of Münster, Heisenbergstr. 2, D-48149, Münster, Germany
| | - Valentin H Klaus
- Institute of Agricultural Sciences, ETH Zürich, Universitätstr. 2, 8092, Zürich, Switzerland
| | - Till Kleinebecker
- Institute of Landscape Ecology and Resources Management, Justus-Liebig-Universität Gießen, Heinrich-Buff-Ring 26-32, D-35392, Gießen, Germany
- Center for International Development and Environmental Research (ZEU), Justus Liebig University Giessen, Senckenbergstrasse 3, 35390, Giessen, Germany
| | - Martin Freitag
- Institute of Landscape Ecology, University of Münster, Heisenbergstr. 2, D-48149, Münster, Germany
| | - Ute Hamer
- Institute of Landscape Ecology, University of Münster, Heisenbergstr. 2, D-48149, Münster, Germany
| | - Rafael S Oliveira
- Departamento de Biologia Vegetal, Universidade Estadual de Campinas, 13083-970, Campinas, Brazil
| | - Hans Lambers
- School of Biological Sciences, University of Western Australia, Crawley, Perth, WA, 6009, Australia
| | - Ellen Kandeler
- Department of Soil Biology, Institute of Soil Science and Land Evaluation, University of Hohenheim, 70599, Stuttgart, Germany
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26
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Fuchs B, Saikkonen K, Helander M, Tian Y, Yang B, Engström MT, Salminen JP, Muola A. Legacy of agrochemicals in the circular food economy: Glyphosate-based herbicides introduced via manure fertilizer affect the yield and biochemistry of perennial crop plants during the following year. Chemosphere 2022; 308:136366. [PMID: 36113650 DOI: 10.1016/j.chemosphere.2022.136366] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/04/2022] [Revised: 08/23/2022] [Accepted: 09/04/2022] [Indexed: 06/15/2023]
Abstract
Conventional agricultural practices favoring the use of glyphosate-based herbicides (GBHs) increase the risk of GBH residues ending up in animal feed, feces, and, eventually, manure. The use of poultry manure as organic fertilizer in the circular food economy increases the unintentional introduction of GBH residues into horticultural and agricultural systems, with reportedly negative effects on the growth and reproduction of crop plants. To understand the potential lasting effects of exposure to GBH residues via organic manure fertilizers, we studied strawberry (Fragaria x vescana) plant performance, yield quantity, biochemistry, folivory, phytochemistry, and soil elemental composition the year after exposure to GBH. Although plants exposed to GBH residues via manure fertilizer were, on average, 23% smaller in the year of exposure, they were able to compensate for their growth during the following growing season. Interestingly, GBH residue exposure in the previous growing season led to a trend in altered plant size preferences of folivores during the following growing season. Furthermore, the plants that had been exposed to GBH residues in the previous growing season produced 20% heavier fruits with an altered composition of phenolic compounds compared to non-exposed plants. Our results indicate that GBHs introduced via manure fertilizer following circular economy practices in one year can have effects on perennial crop plants in the following year, although GBH residues in soil have largely vanished.
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Affiliation(s)
- Benjamin Fuchs
- Biodiversity Unit, University of Turku, FI-20014, Turku, Finland.
| | - Kari Saikkonen
- Biodiversity Unit, University of Turku, FI-20014, Turku, Finland
| | - Marjo Helander
- Department of Biology, University of Turku, FI-20014, Turku, Finland
| | - Ye Tian
- Food Sciences, Department of Life Technologies, University of Turku, FI-20014, Turku, Finland
| | - Baoru Yang
- Food Sciences, Department of Life Technologies, University of Turku, FI-20014, Turku, Finland
| | - Marica T Engström
- Natural Chemistry Research Group, Department of Chemistry, FI-20014, University of Turku, Finland
| | - Juha-Pekka Salminen
- Natural Chemistry Research Group, Department of Chemistry, FI-20014, University of Turku, Finland
| | - Anne Muola
- Biodiversity Unit, University of Turku, FI-20014, Turku, Finland; Division of Biotechnology and Plant Health, Norwegian Institute of Bioeconomy Research, Ås, Norway
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27
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Zhang H, Zhou M, Dong L, Deng Y, Wang W. Critical transition of multifunctional stability induced by nitrogen enrichment in grasslands differing in degradation severity. Sci Total Environ 2022; 848:157660. [PMID: 35907545 DOI: 10.1016/j.scitotenv.2022.157660] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/02/2022] [Revised: 07/21/2022] [Accepted: 07/23/2022] [Indexed: 06/15/2023]
Abstract
Nitrogen (N) enrichment poses a severe threat to ecosystem multifunctionality. Given increasing variability of ecosystem functioning and uncertainty under global change, a pressing question is how N enrichment affects temporal stability of multiple functions (i.e., 'multifunctional stability'). Whether the responses of multifunctional stability to N enrichment change with external disturbance, such as grasslands with different degradation statuses, remains unclear. We conducted multi-level N enrichment experiments at four grassland sites with no, moderate, severe, and extreme degradation statuses in Inner Mongolia, China. We measured temporal stability of five functions, comprising aboveground net primary productivity, soil total carbon (C) and N storage, and soil microbial biomass C and N storage, to explore how multifunctional stability responded to N enrichment. The temporal stability of most individual functions and multifunctional stability decreased sharply when N input exceeded 20 g N m-2 y-1 in the non-, moderately, and severely degraded grasslands, whereas the threshold declined to 10 g N m-2 y-1 in the extremely degraded grassland. The relative importance of plant and soil microbes in regulating multifunctional stability varied along the degradation gradient. In particular, plant species asynchrony and species richness showed strong positive relationships with multifunctional stability in the non- and moderately degraded grasslands, whereas soil microbial diversity, especially bacterial diversity, was positively associated with multifunctional stability in the severely and extremely degraded grasslands. Overall, our findings identified a critical threshold for N-induced multifunctional stability and called for context-specific biodiversity conservation strategies to buffer the negative effect of N enrichment on grassland ecosystem stability.
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Affiliation(s)
- Hongjin Zhang
- Department of Ecology, College of Urban and Environmental Sciences, Key Laboratory for Earth Surface Processes of the Ministry of Education, Peking University, Beijing 100871, China
| | - Mei Zhou
- Department of Ecology, College of Urban and Environmental Sciences, Key Laboratory for Earth Surface Processes of the Ministry of Education, Peking University, Beijing 100871, China
| | - Lizheng Dong
- Department of Ecology, College of Urban and Environmental Sciences, Key Laboratory for Earth Surface Processes of the Ministry of Education, Peking University, Beijing 100871, China
| | - Yanyu Deng
- Department of Ecology, College of Urban and Environmental Sciences, Key Laboratory for Earth Surface Processes of the Ministry of Education, Peking University, Beijing 100871, China; School of Urban Planning and Design, Shenzhen Graduate School, Peking University, Shenzhen 518055, China
| | - Wei Wang
- Department of Ecology, College of Urban and Environmental Sciences, Key Laboratory for Earth Surface Processes of the Ministry of Education, Peking University, Beijing 100871, China.
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van der Heyde M, Bunce M, Nevill P. Key factors to consider in the use of environmental DNA metabarcoding to monitor terrestrial ecological restoration. Sci Total Environ 2022; 848:157617. [PMID: 35901901 DOI: 10.1016/j.scitotenv.2022.157617] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/21/2022] [Revised: 05/30/2022] [Accepted: 07/20/2022] [Indexed: 06/15/2023]
Abstract
Ecological restoration of terrestrial environments is a globally important process to combat the loss of biodiversity and ecosystem services. Holistic monitoring of restored biota and active management of restoration is necessary to improve restoration processes and outcomes, and provide evidence to stakeholders that targets are being achieved. Increasingly, environmental DNA (eDNA) metabarcoding is used as a restoration monitoring tool because it is able to generate biodiversity data rapidly, accurately, non-destructively, and reliably, on a wide breadth of organisms from soil microbes to mammals. The overall objective of this review is to discuss the key factors to consider in the use of environmental DNA for monitoring of restored terrestrial ecosystems, hopefully improving monitoring, and ultimately, restoration outcomes. We identified that the majority of eDNA based studies of ecosystem restoration are currently conducted in Europe, North America, and Australia, and that almost half of total studies were published in 2021-22. Soil was the most popular sample substrate, soil microbial communities the most targeted taxa, and forests the most studied ecosystem. We suggest there is no 'one size fits all' approach to restoration monitoring using eDNA, and discuss survey design. Factors to consider include substrate selection, sample collection and storage, assay selection, and data interpretation, all of which require careful planning to obtain reliable, and accurate information that can be used for restoration monitoring and decision making. We explore future directions for research and argue that eDNA metabarcoding can be a useful tool in the restoration monitoring 'toolkit', but requires informed application and greater accessibility to data by a wide spectrum of stakeholders.
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Affiliation(s)
- Mieke van der Heyde
- ARC Centre for Mine Site Restoration, School of Molecular and Life Sciences, Curtin University, Bentley, GPP Box U1987, Perth, Western Australia 6102, Australia; Trace and Environmental DNA Laboratory, School of Life and Molecular Sciences, Curtin University, GPO Box U1987, Perth, Western Australia 6102, Australia.
| | - Michael Bunce
- Trace and Environmental DNA Laboratory, School of Life and Molecular Sciences, Curtin University, GPO Box U1987, Perth, Western Australia 6102, Australia; Institute of Environmental Science and Research (ESR), Kenepuru, Porirua 5022, New Zealand
| | - Paul Nevill
- ARC Centre for Mine Site Restoration, School of Molecular and Life Sciences, Curtin University, Bentley, GPP Box U1987, Perth, Western Australia 6102, Australia; Trace and Environmental DNA Laboratory, School of Life and Molecular Sciences, Curtin University, GPO Box U1987, Perth, Western Australia 6102, Australia
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29
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Jiao S, Qi J, Jin C, Liu Y, Wang Y, Pan H, Chen S, Liang C, Peng Z, Chen B, Qian X, Wei G. Core phylotypes enhance the resistance of soil microbiome to environmental changes to maintain multifunctionality in agricultural ecosystems. Glob Chang Biol 2022; 28:6653-6664. [PMID: 36002985 DOI: 10.1111/gcb.16387] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/18/2022] [Accepted: 07/09/2022] [Indexed: 06/15/2023]
Abstract
Agricultural ecosystems are facing increasing environmental changes. Revealing ecological stability of belowground organisms is key to developing management strategies that maintain agricultural ecosystem services in a changing world. Here, we collected soils from adjacent pairs of maize and rice fields along large spatial scale across Eastern and Southeast China to investigate the importance of core microbiota as a predictor of resistance of soil microbiome (e.g. bacteria, fungi and protist) to climate changes and nutrient fertilization, and their effect on multiple ecosystem functions, representing key services for crop growth and health in agro-ecosystems. Soil microbiome in maize soils exhibited stronger resistance than that in rice soils, by considering multiple aspects of the resistance index, for example, community, phylogenetic conservation and network complexity. Community resistance of soil microbiome showed a geographic pattern, with higher resistance at lower latitudes, suggesting their stronger resistance in warmer regions. Particularly, we highlighted the role of core phylotypes in enhancing the community resistance of soil microbiome, which was essential for the maintenance of multifunctionality in agricultural ecosystems. Our results represent a significant advance in linking core phylotypes to community resistance and ecosystem functions, and therefore forecasting agro-ecosystems dynamics in response to ongoing environmental changes. These suggest that core phylotypes should be considered a key factor in enhancing agricultural sustainability and crop productivity under global change scenarios.
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Affiliation(s)
- Shuo Jiao
- State Key Laboratory of Crop Stress Biology in Arid Areas, Shaanxi Key Laboratory of Agricultural and Environmental Microbiology, College of Life Sciences, Northwest A&F University, Yangling, P. R. China
| | - Jiejun Qi
- State Key Laboratory of Crop Stress Biology in Arid Areas, Shaanxi Key Laboratory of Agricultural and Environmental Microbiology, College of Life Sciences, Northwest A&F University, Yangling, P. R. China
| | - Chujie Jin
- State Key Laboratory of Crop Stress Biology in Arid Areas, Shaanxi Key Laboratory of Agricultural and Environmental Microbiology, College of Life Sciences, Northwest A&F University, Yangling, P. R. China
| | - Yu Liu
- State Key Laboratory of Crop Stress Biology in Arid Areas, Shaanxi Key Laboratory of Agricultural and Environmental Microbiology, College of Life Sciences, Northwest A&F University, Yangling, P. R. China
| | - Yang Wang
- State Key Laboratory of Crop Stress Biology in Arid Areas, Shaanxi Key Laboratory of Agricultural and Environmental Microbiology, College of Life Sciences, Northwest A&F University, Yangling, P. R. China
| | - Haibo Pan
- State Key Laboratory of Crop Stress Biology in Arid Areas, Shaanxi Key Laboratory of Agricultural and Environmental Microbiology, College of Life Sciences, Northwest A&F University, Yangling, P. R. China
| | - Shi Chen
- State Key Laboratory of Crop Stress Biology in Arid Areas, Shaanxi Key Laboratory of Agricultural and Environmental Microbiology, College of Life Sciences, Northwest A&F University, Yangling, P. R. China
| | - Chunling Liang
- State Key Laboratory of Crop Stress Biology in Arid Areas, Shaanxi Key Laboratory of Agricultural and Environmental Microbiology, College of Life Sciences, Northwest A&F University, Yangling, P. R. China
| | - Ziheng Peng
- State Key Laboratory of Crop Stress Biology in Arid Areas, Shaanxi Key Laboratory of Agricultural and Environmental Microbiology, College of Life Sciences, Northwest A&F University, Yangling, P. R. China
| | - Beibei Chen
- State Key Laboratory of Crop Stress Biology in Arid Areas, Shaanxi Key Laboratory of Agricultural and Environmental Microbiology, College of Life Sciences, Northwest A&F University, Yangling, P. R. China
| | - Xun Qian
- State Key Laboratory of Crop Stress Biology in Arid Areas, Shaanxi Key Laboratory of Agricultural and Environmental Microbiology, College of Life Sciences, Northwest A&F University, Yangling, P. R. China
| | - Gehong Wei
- State Key Laboratory of Crop Stress Biology in Arid Areas, Shaanxi Key Laboratory of Agricultural and Environmental Microbiology, College of Life Sciences, Northwest A&F University, Yangling, P. R. China
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30
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Lundell S, Batbaatar A, Carlyle CN, Lamb EG, Otfinowski R, Schellenberg MP, Bennett JA. Plant responses to soil biota depend on precipitation history, plant diversity, and productivity. Ecology 2022; 103:e3784. [PMID: 35672930 DOI: 10.1002/ecy.3784] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/14/2021] [Revised: 04/18/2022] [Accepted: 05/05/2022] [Indexed: 12/13/2022]
Abstract
Soil biota are critical drivers of plant growth, population dynamics, and community structure and thus have wide-ranging effects on ecosystem function. Interactions between plants and soil biota are complex, however, and can depend on the diversity and productivity of the plant community and environmental conditions. Plant-soil biota interactions may be especially important during stressful periods, such as drought, when plants can gain great benefits from beneficial biota but may be susceptible to antagonists. How soil biota respond to drought is also important and can influence plant growth following drought and leave legacies that affect future plant responses to soil biota and further drought. To explore how drought legacies and plant community context influence plant growth responses to soil biota and further drought, we collected soils from 12 grasslands varying in plant diversity and productivity where precipitation was experimentally reduced. We used these soils as inoculum in a growth chamber experiment testing how precipitation history (ambient or reduced) and soil biota (live or sterile soil inoculum) mediate plant growth and drought responses within an experimental plant community. We also tested whether these responses differed with the diversity and productivity of the community where the soil was collected. Plant growth responses to soil biota were positive when inoculated with soils from less diverse and productive plant communities and became negative as the diversity and productivity of the conditioning community increased. At low diversity, however, positive soil biota effects on plant growth were eliminated if precipitation had been reduced in the field, suggesting that diversity loss may heighten climate change sensitivity. Differences among species within the experimental community in their responses to soil biota and drought suggest that species benefitting from less drought sensitive soil biota may be able to compensate for some of this loss of productivity. Regardless of the plant species and soil origin, further drought eliminated any effects of soil biota on plant growth. Consequently, soil biota may be unable to buffer the effects of drought on primary productivity or other ecosystem functions as extreme events increase in frequency.
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Affiliation(s)
- Seth Lundell
- Department of Plant Sciences, University of Saskatchewan, Saskatoon, Canada
| | - Amgaa Batbaatar
- Department of Biological Sciences, University of Alberta, Edmonton, Alberta, Canada.,Department of Agricultural, Food and Nutritional Science, University of Alberta, Edmonton, Alberta, Canada
| | - Cameron N Carlyle
- Department of Agricultural, Food and Nutritional Science, University of Alberta, Edmonton, Alberta, Canada
| | - Eric G Lamb
- Department of Plant Sciences, University of Saskatchewan, Saskatoon, Canada
| | - Rafael Otfinowski
- Department of Biology, The University of Winnipeg, Winnipeg, Manitoba, Canada
| | - Michael P Schellenberg
- Swift Current Research and Development Centre, Agriculture and Agri-Food Canada, Swift Current, Saskatchewan, Canada
| | - Jonathan A Bennett
- Department of Plant Sciences, University of Saskatchewan, Saskatoon, Canada
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31
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Carof M, Godinot O, Le Cadre E. Biodiversity-based cropping systems: A long-term perspective is necessary. Sci Total Environ 2022; 838:156022. [PMID: 35588807 DOI: 10.1016/j.scitotenv.2022.156022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/17/2021] [Revised: 04/25/2022] [Accepted: 05/13/2022] [Indexed: 06/15/2023]
Abstract
Biodiversity-based cropping systems are an interesting option to address the many challenges that agriculture faces. However, benefits of these systems should not obscure the fact that creating biodiversity-based cropping systems represents a major change for farmers. To address this challenge, we argue that designing biodiversity-based cropping systems requires transforming ecological concepts into technical opportunities. Indeed, integrating ecological concepts such as plant-soil feedback and plant functional traits more strongly into cropping system design offers promising opportunities for the provision of ecosystem services, such as pest and disease control, crop production (including crop yield stability), climate regulation and regulation of soil quality. Accordingly, we demonstrate that designing biodiversity-based cropping systems requires considering not only the short term but also the long term. This would ensure that the expected ecosystem services have enough time to build up and provide their full effects, that the cropping systems are resilient and that they avoid the limitations of short-term assessments, which do not sufficiently consider multi-year effects. Considering long-term consequences of system change - induced by biodiversity - is essential to identify potential trade-offs between ecosystem services, as well as agricultural obstacles to and mechanisms of change. Including farmers and other food-chain actors in cropping system design would help find acceptable compromises that consider not only the provision of ecosystem services, but also other dimensions related to economic viability, workload or the technical feasibility of crops, which are identified as major obstacles to crop diversification. This strategy represents an exciting research front for the development of agroecological cropping systems.
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Cardenas Alegria O, Pires Quaresma M, Dias Dantas CW, Silva Guedes Lobato EM, de Oliveira Aragão A, Patroca da Silva S, Costa Barros da Silva A, Ribeiro Cruz AC, Ramos RTJ, Carneiro AR. Impacts of soybean agriculture on the resistome of the Amazonian soil. Front Microbiol 2022; 13:948188. [PMID: 36160259 PMCID: PMC9500545 DOI: 10.3389/fmicb.2022.948188] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2022] [Accepted: 08/16/2022] [Indexed: 11/15/2022] Open
Abstract
The soils of the Amazon are complex environments with different organisms cohabiting in continuous adaptation processes; this changes significantly when these environments are modified for the development of agricultural activities that alter the chemical, macro, and microbiological compositions. The metagenomic variations and the levels of the environmental impact of four different soil samples from the Amazon region were evaluated, emphasizing the resistome. Soil samples from the organic phase from the different forest, pasture, and transgenic soybean monocultures of 2–14 years old were collected in triplicate at each site. The samples were divided into two groups, and one group was pre-treated to obtain genetic material to perform sequencing for metagenomic analysis; another group carried out the chemical characterization of the soil, determining the pH, the content of cations, and heavy metals; these were carried out in addition to identifying with different databases the components of the microbiological communities, functional genes, antibiotic and biocide resistance genes. A greater diversity of antibiotic resistance genes was observed in the forest soil. In contrast, in monoculture soils, a large number of biocide resistance genes were evidenced, highlighting the diversity and abundance of crop soils, which showed better resistance to heavy metals than other compounds, with a possible dominance of resistance to iron due to the presence of the acn gene. For up to 600 different genes for resistance to antibiotics and 256 genes for biocides were identified, most of which were for heavy metals. The most prevalent was resistance to tetracycline, cephalosporin, penam, fluoroquinolone, chloramphenicol, carbapenem, macrolide, and aminoglycoside, providing evidence for the co-selection of these resistance genes in different soils. Furthermore, the influence of vegetation cover on the forest floor was notable as a protective factor against the impact of human contamination. Regarding chemical characterization, the presence of heavy metals, different stress response mechanisms in monoculture soils, and the abundance of mobile genetic elements in crop and pasture soils stand out. The elimination of the forest increases the diversity of genes for resistance to biocides, favoring the selection of genes for resistance to antibiotics in soils.
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Affiliation(s)
- Oscar Cardenas Alegria
- Laboratory of Genomic and Bioinformatics, Center of Genomics and System Biology, Institute of Biological Sciences, Federal University of Pará, Belém, Brazil
- *Correspondence: Oscar Cardenas Alegria
| | - Marielle Pires Quaresma
- Laboratory of Genomic and Bioinformatics, Center of Genomics and System Biology, Institute of Biological Sciences, Federal University of Pará, Belém, Brazil
| | | | | | - Andressa de Oliveira Aragão
- Laboratory of Genomic and Bioinformatics, Center of Genomics and System Biology, Institute of Biological Sciences, Federal University of Pará, Belém, Brazil
| | - Sandro Patroca da Silva
- Department of Arbovirology and Hemorrhagic Fevers, Evandro Chagas Institute-IEC/SVS/MS, Ananindeua, Brazil
| | - Amanda Costa Barros da Silva
- Laboratory of Genomic and Bioinformatics, Center of Genomics and System Biology, Institute of Biological Sciences, Federal University of Pará, Belém, Brazil
| | - Ana Cecília Ribeiro Cruz
- Department of Arbovirology and Hemorrhagic Fevers, Evandro Chagas Institute-IEC/SVS/MS, Ananindeua, Brazil
| | - Rommel Thiago Jucá Ramos
- Laboratory of Genomic and Bioinformatics, Center of Genomics and System Biology, Institute of Biological Sciences, Federal University of Pará, Belém, Brazil
- Institute of Biological Sciences, Federal University of Minas Gerais, Belo Horizonte, Brazil
| | - Adriana Ribeiro Carneiro
- Laboratory of Genomic and Bioinformatics, Center of Genomics and System Biology, Institute of Biological Sciences, Federal University of Pará, Belém, Brazil
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Peng Y, Peñuelas J, Vesterdal L, Yue K, Peguero G, Fornara DA, Heděnec P, Steffens C, Wu F. Responses of soil fauna communities to the individual and combined effects of multiple global change factors. Ecol Lett 2022; 25:1961-1973. [PMID: 35875902 DOI: 10.1111/ele.14068] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2022] [Revised: 05/11/2022] [Accepted: 06/20/2022] [Indexed: 11/28/2022]
Abstract
Soil fauna plays a key role in regulating biogeochemical cycles, but how multiple global change factors (GCFs) may affect faunal communities remains poorly studied. We conducted a meta-analysis using 1154 observations to evaluate the individual and combined effects of elevated CO2 , nitrogen (N) addition, warming, increased rainfall and drought on soil fauna density and diversity. Here we show that, overall, individual and combined effects of GCFs had negligible effects on soil fauna density and diversity, except that density was negatively affected by drought (-27.4%) and positively affected by increased rainfall individually (+24.9%) and in combination with N addition (+67.3%) or warming (+70.4%). GCF effects varied among taxonomic groups both in magnitude and direction. Variables such as latitude, elevation and experimental setting significantly impacted both individual and combined effects. Our results suggest that soil fauna density is affected by changed rainfall regimes, while diversity is resistant against individual and combined effects of multiple GCFs.
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Affiliation(s)
- Yan Peng
- Key Laboratory for Humid Subtropical Eco-Geographical Processes of the Ministry of Education, School of Geographical Sciences, Fujian Normal University, Fuzhou, China
| | - Josep Peñuelas
- CREAF, E08193, Cerdanyola del Vallès, Catalonia, Spain.,CSIC, Global Ecology Unit, CREAF-CSIC-UAB, E08193, Cerdanyola del Vallès, Catalonia, Spain
| | - Lars Vesterdal
- Department of Geosciences and Natural Resource Management, University of Copenhagen, Frederiksberg C, Denmark
| | - Kai Yue
- Key Laboratory for Humid Subtropical Eco-Geographical Processes of the Ministry of Education, School of Geographical Sciences, Fujian Normal University, Fuzhou, China
| | - Guille Peguero
- CREAF, E08193, Cerdanyola del Vallès, Catalonia, Spain.,CSIC, Global Ecology Unit, CREAF-CSIC-UAB, E08193, Cerdanyola del Vallès, Catalonia, Spain
| | - Dario A Fornara
- Davines Group, Rodale Institute European Regenerative Organic Center (EROC), Parma, Italy
| | - Petr Heděnec
- Institute of Tropical Biodiversity and Sustainable Development, University Malaysia Terengganu, Kuala Nerus, Terengganu, Malaysia
| | - Christina Steffens
- Institute of Soil Science, Center for Earth System Research and Sustainability (CEN), University of Hamburg, Hamburg, Germany
| | - Fuzhong Wu
- Key Laboratory for Humid Subtropical Eco-Geographical Processes of the Ministry of Education, School of Geographical Sciences, Fujian Normal University, Fuzhou, China
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Lynch DH. Soil Health and Biodiversity Is Driven by Intensity of Organic Farming in Canada. Front Sustain Food Syst 2022. [DOI: 10.3389/fsufs.2022.826486] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Organic farming is continuing to expand in Canada, with close to 6,000 producers farming over 2% of all agricultural land. There is insufficient evidence, however, of a trend toward larger average farm size and increasing specialization by these organic farms. This mini-review postulates that a gradient of intensity of farm management exists within organic farming sectors in Canada, with respect to cropping diversity, and tillage and nutrient utilization, and this gradient of intensity is a key determinant of agroecological outcomes. This variation in management approach and intensity reflects producer's individual perspectives on organic farming principles and practices, irrespective of farm scale. By directly influencing farm crop and vegetative diversity and cover, and farm nutrient status and carbon cycling, management intensity determines soil carbon storage and flux, soil health and biodiversity agroecological and ecosystem services, plus farm agronomic resilience. Demographic trends and perspectives of new entrants in organic farming are encouraging signs of an increasingly inclusive and socio-ecologically complex Canadian organic farming sector, which recognizes the agroecological implications of intensity of organic farm management across all production sectors.
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Djemiel C, Dequiedt S, Karimi B, Cottin A, Horrigue W, Bailly A, Boutaleb A, Sadet-Bourgeteau S, Maron PA, Chemidlin Prévost-Bouré N, Ranjard L, Terrat S. Potential of Meta-Omics to Provide Modern Microbial Indicators for Monitoring Soil Quality and Securing Food Production. Front Microbiol 2022; 13:889788. [PMID: 35847063 PMCID: PMC9280627 DOI: 10.3389/fmicb.2022.889788] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2022] [Accepted: 06/06/2022] [Indexed: 01/02/2023] Open
Abstract
Soils are fundamental resources for agricultural production and play an essential role in food security. They represent the keystone of the food value chain because they harbor a large fraction of biodiversity—the backbone of the regulation of ecosystem services and “soil health” maintenance. In the face of the numerous causes of soil degradation such as unsustainable soil management practices, pollution, waste disposal, or the increasing number of extreme weather events, it has become clear that (i) preserving the soil biodiversity is key to food security, and (ii) biodiversity-based solutions for environmental monitoring have to be developed. Within the soil biodiversity reservoir, microbial diversity including Archaea, Bacteria, Fungi and protists is essential for ecosystem functioning and resilience. Microbial communities are also sensitive to various environmental drivers and to management practices; as a result, they are ideal candidates for monitoring soil quality assessment. The emergence of meta-omics approaches based on recent advances in high-throughput sequencing and bioinformatics has remarkably improved our ability to characterize microbial diversity and its potential functions. This revolution has substantially filled the knowledge gap about soil microbial diversity regulation and ecology, but also provided new and robust indicators of agricultural soil quality. We reviewed how meta-omics approaches replaced traditional methods and allowed developing modern microbial indicators of the soil biological quality. Each meta-omics approach is described in its general principles, methodologies, specificities, strengths and drawbacks, and illustrated with concrete applications for soil monitoring. The development of metabarcoding approaches in the last 20 years has led to a collection of microbial indicators that are now operational and available for the farming sector. Our review shows that despite the recent huge advances, some meta-omics approaches (e.g., metatranscriptomics or meta-proteomics) still need developments to be operational for environmental bio-monitoring. As regards prospects, we outline the importance of building up repositories of soil quality indicators. These are essential for objective and robust diagnosis, to help actors and stakeholders improve soil management, with a view to or to contribute to combining the food and environmental quality of next-generation farming systems in the context of the agroecological transition.
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Affiliation(s)
- Christophe Djemiel
- Agroécologie, INRAE, Institut Agro, Université Bourgogne, Université Bourgogne Franche-Comté, Dijon, France
| | - Samuel Dequiedt
- Agroécologie, INRAE, Institut Agro, Université Bourgogne, Université Bourgogne Franche-Comté, Dijon, France
| | - Battle Karimi
- Agroécologie, INRAE, Institut Agro, Université Bourgogne, Université Bourgogne Franche-Comté, Dijon, France
- Novasol Experts, Dijon, France
| | - Aurélien Cottin
- Agroécologie, INRAE, Institut Agro, Université Bourgogne, Université Bourgogne Franche-Comté, Dijon, France
| | - Walid Horrigue
- Agroécologie, INRAE, Institut Agro, Université Bourgogne, Université Bourgogne Franche-Comté, Dijon, France
| | - Arthur Bailly
- Agroécologie, INRAE, Institut Agro, Université Bourgogne, Université Bourgogne Franche-Comté, Dijon, France
| | - Ali Boutaleb
- Agroécologie, INRAE, Institut Agro, Université Bourgogne, Université Bourgogne Franche-Comté, Dijon, France
| | - Sophie Sadet-Bourgeteau
- Agroécologie, INRAE, Institut Agro, Université Bourgogne, Université Bourgogne Franche-Comté, Dijon, France
| | - Pierre-Alain Maron
- Agroécologie, INRAE, Institut Agro, Université Bourgogne, Université Bourgogne Franche-Comté, Dijon, France
| | | | - Lionel Ranjard
- Agroécologie, INRAE, Institut Agro, Université Bourgogne, Université Bourgogne Franche-Comté, Dijon, France
- Lionel Ranjard,
| | - Sébastien Terrat
- Agroécologie, INRAE, Institut Agro, Université Bourgogne, Université Bourgogne Franche-Comté, Dijon, France
- *Correspondence: Sébastien Terrat,
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Yu Y, Liu L, Zhao J, Wang S, Zhou Y, Xiao C. The Diversity of Soil Bacteria and Fungi Under Altered Nitrogen and Rainfall Patterns in a Temperate Steppe. Front Microbiol 2022; 13:906818. [PMID: 35774466 PMCID: PMC9238322 DOI: 10.3389/fmicb.2022.906818] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2022] [Accepted: 04/29/2022] [Indexed: 11/22/2022] Open
Abstract
The response of soil microorganisms to altered nitrogen (N) and rainfall patterns plays an important role in understanding ecosystem carbon and nitrogen cycling processes under global change. Previous studies have separately focused on the effects of N addition and rainfall on soil microbial diversity and community composition. However, the combined and interactive impact of N addition and rainfall on soil microbial diversity and function mediated by plant and soil processes have been poorly investigated for grassland ecosystems. Here, we conducted a field experiment with simulated N addition (N addition: 10 g N m–2yr–1) and altered rainfall pattern [control, rainfall reduction (compared to control –50%); rainfall addition (compared to control + 50%)] to study their interactive effects on soil microbial diversity and function in a temperate steppe of Inner Mongolia. Our results showed that N addition and rainfall addition significantly increased soil bacterial diversity, and the bacterial diversity was positively correlated with soil microbial biomass nitrogen, inorganic nitrogen, and Stipa krylovii root exudate C:N ratio, Allium polyrhizum root exudate C and N, and A. polyrhizum root exudate C:N ratio. N addition and rainfall reduction significantly reduced fungal diversity, which correlated closely with soil microbial biomass carbon and the C:N ratio of A. polyrhizum root exudates. Bacteria were mainly eutrophic r-strategists, and the responses of bacterial function guilds to the interaction between N addition and rainfall pattern were not significant. However, the arbuscular mycorrhizal fungi (AMF), in the functional classification of fungi, were significantly reduced under the condition of N addition and rainfall reduction, and the absolute abundance of the phylum Glomeromycota increased under rainfall addition, suggesting that AMFs are sensitive to altered N and rainfall patterns over short timescales (1 year). Collectively, our results have important implications for understanding the plant–soil–microbe system of grasslands under climate change.
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Affiliation(s)
- Yang Yu
- Key Laboratory of Ecology and Environment in Minority Areas, Minzu University of China, National Ethnic Affairs Commission, Beijing, China
- College of Life and Environmental Sciences, Minzu University of China, Beijing, China
| | - Lu Liu
- Key Laboratory of Ecology and Environment in Minority Areas, Minzu University of China, National Ethnic Affairs Commission, Beijing, China
- College of Life and Environmental Sciences, Minzu University of China, Beijing, China
| | - Jianing Zhao
- Key Laboratory of Ecology and Environment in Minority Areas, Minzu University of China, National Ethnic Affairs Commission, Beijing, China
- College of Life and Environmental Sciences, Minzu University of China, Beijing, China
| | - Shuchen Wang
- Key Laboratory of Ecology and Environment in Minority Areas, Minzu University of China, National Ethnic Affairs Commission, Beijing, China
- College of Life and Environmental Sciences, Minzu University of China, Beijing, China
| | - Yijun Zhou
- Key Laboratory of Ecology and Environment in Minority Areas, Minzu University of China, National Ethnic Affairs Commission, Beijing, China
- College of Life and Environmental Sciences, Minzu University of China, Beijing, China
- Yijun Zhou,
| | - Chunwang Xiao
- Key Laboratory of Ecology and Environment in Minority Areas, Minzu University of China, National Ethnic Affairs Commission, Beijing, China
- College of Life and Environmental Sciences, Minzu University of China, Beijing, China
- *Correspondence: Chunwang Xiao,
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Fu W, Chen B, Rillig MC, Jansa J, Ma W, Xu C, Luo W, Wu H, Hao Z, Wu H, Zhao A, Yu Q, Han X. Community response of arbuscular mycorrhizal fungi to extreme drought in a cold-temperate grassland. New Phytol 2022; 234:2003-2017. [PMID: 34449895 DOI: 10.1111/nph.17692] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/27/2021] [Accepted: 08/20/2021] [Indexed: 06/13/2023]
Abstract
Climate extremes pose enormous threats to natural ecosystems. Arbuscular mycorrhizal (AM) fungi are key plant symbionts that can affect plant community dynamics and ecosystem stability. However, knowledge about how AM fungal communities respond to climate extremes in natural ecosystems remains elusive. Based on a grassland extreme drought experiment in Inner Mongolia, we investigated the response of AM fungal communities to extreme drought in association with plant communities. The experiment simulated two types of extreme drought (chronic/intense) of once-in-20-year occurrence. AM fungal richness and community composition exhibited high sensitivity to extreme drought and were more sensitive to intense drought than chronic drought. This community sensitivity (i.e. decline in richness and shifts in community composition) of AM fungi can be jointly explained by soil moisture, plant richness, and aboveground productivity. Notably, the robustness of the plant-AM fungal community co-response increased with drought intensity. Our results indicate that AM fungal communities are sensitive to climate extremes, and we propose that the plant community mediates AM fungal community responses. Given the ubiquitous nature of AM associations, their climate sensitivity may have profound consequences on plant communities and ecosystem stability under climate change.
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Affiliation(s)
- Wei Fu
- State Key Laboratory of Urban and Regional Ecology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Baodong Chen
- State Key Laboratory of Urban and Regional Ecology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Matthias C Rillig
- Institute of Biology, Freie Universität Berlin, Berlin, 14195, Germany
- Berlin-Brandenburg Institute of Advanced Biodiversity Research (BBIB), Berlin, 14195, Germany
| | - Jan Jansa
- Laboratory of Fungal Biology, Institute of Microbiology, Czech Academy of Sciences, Vídeňská 1083, Prague 4, 14220, Czech Republic
| | - Wang Ma
- University of Chinese Academy of Sciences, Beijing, 100049, China
- Erguna Forest-Steppe Ecotone Research Station, Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang, 110164, China
| | - Chong Xu
- Ministry of Agriculture Key Laboratory of Crop Nutrition and Fertilization, Institute of Agricultural Resources and Regional Planning, Chinese Academy of Agricultural Sciences, Beijing, 100081, China
- State Key Laboratory of Grassland Agro-ecosystems, College of Pastoral Agriculture Science and Technology, Lanzhou University, Lanzhou, 730020, China
| | - Wentao Luo
- Erguna Forest-Steppe Ecotone Research Station, Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang, 110164, China
| | - Honghui Wu
- Ministry of Agriculture Key Laboratory of Crop Nutrition and Fertilization, Institute of Agricultural Resources and Regional Planning, Chinese Academy of Agricultural Sciences, Beijing, 100081, China
| | - Zhipeng Hao
- State Key Laboratory of Urban and Regional Ecology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, China
| | - Hui Wu
- State Key Laboratory of Urban and Regional Ecology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Aihua Zhao
- State Key Laboratory of Urban and Regional Ecology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Qiang Yu
- National Hulunber Grassland Ecosystem Observation and Research Station, Institute of Agricultural Resources and Regional Planning, Chinese Academy of Agricultural Sciences, Beijing, 10008, China
| | - Xingguo Han
- University of Chinese Academy of Sciences, Beijing, 100049, China
- Erguna Forest-Steppe Ecotone Research Station, Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang, 110164, China
- State Key Laboratory of Vegetation and Environmental Change, Institute of Botany, Chinese Academy of Sciences, Beijing, 100093, China
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38
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Liu S, García-Palacios P, Tedersoo L, Guirado E, van der Heijden MGA, Wagg C, Chen D, Wang Q, Wang J, Singh BK, Delgado-Baquerizo M. Phylotype diversity within soil fungal functional groups drives ecosystem stability. Nat Ecol Evol 2022; 6:900-909. [PMID: 35534625 DOI: 10.1038/s41559-022-01756-5] [Citation(s) in RCA: 39] [Impact Index Per Article: 19.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2021] [Accepted: 03/30/2022] [Indexed: 12/25/2022]
Abstract
Soil fungi are fundamental to plant productivity, yet their influence on the temporal stability of global terrestrial ecosystems, and their capacity to buffer plant productivity against extreme drought events, remain uncertain. Here we combined three independent global field surveys of soil fungi with a satellite-derived temporal assessment of plant productivity, and report that phylotype richness within particular fungal functional groups drives the stability of terrestrial ecosystems. The richness of fungal decomposers was consistently and positively associated with ecosystem stability worldwide, while the opposite pattern was found for the richness of fungal plant pathogens, particularly in grasslands. We further demonstrated that the richness of soil decomposers was consistently positively linked with higher resistance of plant productivity in response to extreme drought events, while that of fungal plant pathogens showed a general negative relationship with plant productivity resilience/resistance patterns. Together, our work provides evidence supporting the critical role of soil fungal diversity to secure stable plant production over time in global ecosystems, and to buffer against extreme climate events.
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Affiliation(s)
- Shengen Liu
- Engineering Research Center of Eco-Environment in Three Gorges Reservoir Region of Ministry of Education, China Three Gorges University, Yichang, China.,Laboratorio de Biodiversidad y Funcionamiento Ecosistémico, Instituto de Recursos Naturales y Agrobiología de Sevilla (IRNAS), CSIC, Seville, Spain.,Huitong Experimental Station of Forest Ecology, CAS Key Laboratory of Forest Ecology and Management, Institute of Applied Ecology, Shenyang, PR China
| | - Pablo García-Palacios
- Instituto de Ciencias Agrarias, Consejo Superior de Investigaciones Científicas, Madrid, Spain
| | - Leho Tedersoo
- Mycology and Microbiology Center, University of Tartu, Tartu, Estonia.,College of Science, King Saud University, Riyadh, Saudi Arabia
| | - Emilio Guirado
- Multidisciplinary Institute for Environment Studies 'Ramon Margalef', University of Alicante, Alicante, Spain.,Andalusian Center for Assessment and Monitoring of Global Change (CAESCG), University of Almeria, Almeria, Spain
| | - Marcel G A van der Heijden
- Plant-Soil Interactions Group, Agroscope, Zurich, Switzerland.,Department of Plant and Microbial Biology, University of Zurich, Zurich, Switzerland
| | - Cameron Wagg
- Fredericton Research and Development Centre, Agriculture and Agri-Food Canada, Fredericton, New Brunswick, Canada
| | - Dima Chen
- Engineering Research Center of Eco-Environment in Three Gorges Reservoir Region of Ministry of Education, China Three Gorges University, Yichang, China
| | - Qingkui Wang
- Huitong Experimental Station of Forest Ecology, CAS Key Laboratory of Forest Ecology and Management, Institute of Applied Ecology, Shenyang, PR China.,School of Forestry & Landscape Architecture, Anhui Agricultural University, Hefei, China
| | - Juntao Wang
- Hawkesbury Institute for the Environment, Western Sydney University, Richmond, New South Wales, Australia
| | - Brajesh K Singh
- Hawkesbury Institute for the Environment, Western Sydney University, Richmond, New South Wales, Australia.,Global Centre for Land-Based Innovation, Western Sydney University, Penrith, New South Wales, Australia
| | - Manuel Delgado-Baquerizo
- Laboratorio de Biodiversidad y Funcionamiento Ecosistémico, Instituto de Recursos Naturales y Agrobiología de Sevilla (IRNAS), CSIC, Seville, Spain. .,Unidad Asociada CSIC-UPO (BioFun), Universidad Pablo de Olavide, Seville, Spain.
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39
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Rodriguez V, Moskwa LM, Oses R, Kühn P, Riveras-Muñoz N, Seguel O, Scholten T, Wagner D. Impact of Climate and Slope Aspects on the Composition of Soil Bacterial Communities Involved in Pedogenetic Processes along the Chilean Coastal Cordillera. Microorganisms 2022; 10:microorganisms10050847. [PMID: 35630293 PMCID: PMC9143490 DOI: 10.3390/microorganisms10050847] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2022] [Revised: 04/13/2022] [Accepted: 04/16/2022] [Indexed: 02/04/2023] Open
Abstract
Soil bacteria play a fundamental role in pedogenesis. However, knowledge about both the impact of climate and slope aspects on microbial communities and the consequences of these items in pedogenesis is lacking. Therefore, soil-bacterial communities from four sites and two different aspects along the climate gradient of the Chilean Coastal Cordillera were investigated. Using a combination of microbiological and physicochemical methods, soils that developed in arid, semi-arid, mediterranean, and humid climates were analyzed. Proteobacteria, Acidobacteria, Chloroflexi, Verrucomicrobia, and Planctomycetes were found to increase in abundance from arid to humid climates, while Actinobacteria and Gemmatimonadetes decreased along the transect. Bacterial-community structure varied with climate and aspect and was influenced by pH, bulk density, plant-available phosphorus, clay, and total organic-matter content. Higher bacterial specialization was found in arid and humid climates and on the south-facing slope and was likely promoted by stable microclimatic conditions. The presence of specialists was associated with ecosystem-functional traits, which shifted from pioneers that accumulated organic matter in arid climates to organic decomposers in humid climates. These findings provide new perspectives on how climate and slope aspects influence the composition and functional capabilities of bacteria, with most of these capabilities being involved in pedogenetic processes.
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Affiliation(s)
- Victoria Rodriguez
- GFZ German Research Centre for Geosciences, Section Geomicrobiology, 14473 Potsdam, Germany; (V.R.); (L.-M.M.)
| | - Lisa-Marie Moskwa
- GFZ German Research Centre for Geosciences, Section Geomicrobiology, 14473 Potsdam, Germany; (V.R.); (L.-M.M.)
| | - Rómulo Oses
- Centro Regional de Investigación y Desarrollo Sustentable de Atacama, Universidad de Atacama (CRIDESAT UDA), Copayapu 484, Copiapó 1530000, Chile;
| | - Peter Kühn
- Department of Geosciences, Soil Science and Geomorphology, University of Tübingen, 72070 Tübingen, Germany; (P.K.); (N.R.-M.); (T.S.)
| | - Nicolás Riveras-Muñoz
- Department of Geosciences, Soil Science and Geomorphology, University of Tübingen, 72070 Tübingen, Germany; (P.K.); (N.R.-M.); (T.S.)
| | - Oscar Seguel
- Facultad de Ciencias Agronómicas, Universidad de Chile, Av. Santa Rosa #11315, La Pintana, Santiago 8820808, Chile;
| | - Thomas Scholten
- Department of Geosciences, Soil Science and Geomorphology, University of Tübingen, 72070 Tübingen, Germany; (P.K.); (N.R.-M.); (T.S.)
| | - Dirk Wagner
- GFZ German Research Centre for Geosciences, Section Geomicrobiology, 14473 Potsdam, Germany; (V.R.); (L.-M.M.)
- Institute of Geosciences, University of Potsdam, 14476 Potsdam, Germany
- Correspondence:
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40
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Shen C, Wang J, Jing Z, Qiao NH, Xiong C, Ge Y. Plant diversity enhances soil fungal network stability indirectly through the increase of soil carbon and fungal keystone taxa richness. Sci Total Environ 2022; 818:151737. [PMID: 34808153 DOI: 10.1016/j.scitotenv.2021.151737] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/13/2021] [Revised: 11/04/2021] [Accepted: 11/13/2021] [Indexed: 06/13/2023]
Abstract
Plant diversity is critical to the stability of ecosystems. However, our knowledge about the plant diversity effect on the stability of belowground communities is limited. Here, we characterized soil fungal diversity and co-occurrence network across a plant diversity gradient in a diversity manipulation experiment. We found that higher plant diversity resulted in higher fungal diversity, network complexity and stability. The positive plant diversity effect on fungal network stability was indirect via the increase of soil carbon and fungal keystone taxa richness based on structural equation modeling analysis. The model explained 44% variations of network stability when combining soil carbon and fungal keystone taxa richness, but explained approximate 30% variations of network stability when considering either one of the two factors, indicating that environmental filtering and biotic interaction processes play comparable roles in mediating the plant diversity effect on soil fungal network stability. The plant diversity-induced fungal network stability was significantly correlated with community-level functions including community resistance and enzyme activities. This study, from the view of networks, provides new insights into the plant diversity effect on the stability of soil microbial communities, which have implications for biodiversity conservation and policy development.
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Affiliation(s)
- Congcong Shen
- State Key Laboratory of Urban and Regional Ecology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Jiang Wang
- School of Life Sciences, Taizhou University, Taizhou 318000, China
| | - Zhongwang Jing
- State Key Laboratory of Urban and Regional Ecology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Neng-Hu Qiao
- State Key Laboratory of Urban and Regional Ecology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Chao Xiong
- College of Urban and Environmental Sciences, Peking University, Beijing 100871, China
| | - Yuan Ge
- State Key Laboratory of Urban and Regional Ecology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; University of Chinese Academy of Sciences, Beijing 100049, China.
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41
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Zhou Z, Krashevska V, Widyastuti R, Scheu S, Potapov A. Tropical land use alters functional diversity of soil food webs and leads to monopolization of the detrital energy channel. eLife 2022; 11:75428. [PMID: 35357306 PMCID: PMC9033302 DOI: 10.7554/elife.75428] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2021] [Accepted: 03/29/2022] [Indexed: 11/25/2022] Open
Abstract
Agricultural expansion is among the main threats to biodiversity and functions of tropical ecosystems. It has been shown that conversion of rainforest into plantations erodes biodiversity, but further consequences for food-web structure and energetics of belowground communities remains little explored. We used a unique combination of stable isotope analysis and food-web energetics to analyze in a comprehensive way consequences of the conversion of rainforest into oil palm and rubber plantations on the structure of and channeling of energy through soil animal food webs in Sumatra, Indonesia. Across the animal groups studied, most of the taxa had lower litter-calibrated Δ13C values in plantations than in rainforests, suggesting that they switched to freshly-fixed plant carbon ('fast' energy channeling) in plantations from the detrital C pathway ('slow' energy channeling) in rainforests. These shifts led to changes in isotopic divergence, dispersion, evenness, and uniqueness. However, earthworms as major detritivores stayed unchanged in their trophic niche and monopolized the detrital pathway in plantations, resulting in similar energetic metrics across land-use systems. Functional diversity metrics of soil food webs were associated with reduced amount of litter, tree density, and species richness in plantations, providing guidelines on how to improve the complexity of the structure of and channeling of energy through soil food webs. Our results highlight the strong restructuring of soil food webs with the conversion of rainforest into plantations threatening soil functioning and ecosystem stability in the long term.
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Affiliation(s)
- Zheng Zhou
- JF Blumenbach Institute of Zoology and Anthropology, University of Göttingen, Göttingen, Germany
| | - Valentyna Krashevska
- JF Blumenbach Institute of Zoology and Anthropology, University of Göttingen, Göttingen, Germany
| | - Rahayu Widyastuti
- Department of Soil Sciences and Land Resources, Institut Pertanian Bogor, Bogor, Indonesia
| | - Stefan Scheu
- JF Blumenbach Institute of Zoology and Anthropology, University of Göttingen, Göttingen, Germany
| | - Anton Potapov
- JF Blumenbach Institute of Zoology and Anthropology, University of Göttingen, Göttingen, Germany
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42
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Muhammad A, He J, Yu T, Sun C, Shi D, Jiang Y, Xianyu Y, Shao Y. Dietary exposure of copper and zinc oxides nanoparticles affect the fitness, enzyme activity, and microbial community of the model insect, silkworm Bombyx mori. Sci Total Environ 2022; 813:152608. [PMID: 34973320 DOI: 10.1016/j.scitotenv.2021.152608] [Citation(s) in RCA: 23] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/18/2021] [Revised: 12/16/2021] [Accepted: 12/18/2021] [Indexed: 05/24/2023]
Abstract
Copper and Zinc oxides nanoparticles (CuO and ZnO NPs, respectively) are among the most produced and commonly used engineered nanomaterials. They can be released into the environment, thereby causing health concerns and risks to biodiversity that indicate a need to evaluate their toxicological effects in a complex situation. Here, we used the insect model organism silkworm Bombyx mori to address the concerns about the biological effects associated with dietary exposure of CuO and ZnO NPs. ICP-MS analysis revealed significant accumulation of Cu and Zn (the latter being more accumulated) in silkworms' tissues (gut, fat body, silk gland, and malpighian tubule), and some elimination through feces in the respective NPs-exposed groups. NPs-exposures led to a decrease in larval body mass, survivorship, and cocoon production, where the effects of ZnO NPs were more pronounced. We also found that NPs-exposure induced gene expression changes (Attacin, lysozyme, SOD, and Dronc) and altered the activities of antioxidant enzymes (SOD, GST, and CAT), as well as impaired nutrient metabolism (alpha-amylase). Given their antibacterial property, CuO and ZnO NPs decreased species richness and diversity of the gut bacterial community and shifted their configuration to overt microbiome i.e., decreased abundance of probiotics (e.g., Acetobacter) and increased pathobionts (e.g., Pseudomonas, Bacillus, Escherichia, Enterococcus, Ralstonia, etc.) proportions. Overall, this integrated study revealed the unintended negative effects of CuO and ZnO NPs on silkworms and highlighted the potential to inevitably affect all living things due to intensive and possible mishandling of nanomaterials.
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Affiliation(s)
- Abrar Muhammad
- Max Planck Partner Group, Institute of Sericulture and Apiculture, College of Animal Sciences, Zhejiang University, Hangzhou, China
| | - Jintao He
- Max Planck Partner Group, Institute of Sericulture and Apiculture, College of Animal Sciences, Zhejiang University, Hangzhou, China
| | - Ting Yu
- College of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou, China
| | - Chao Sun
- Analysis Center of Agrobiology and Environmental Sciences, Zhejiang University, Hangzhou, China
| | - Dier Shi
- Department of Chemistry, Zhejiang University, Hangzhou, China
| | - Yan Jiang
- Department of Chemistry, Zhejiang University, Hangzhou, China
| | - Yunlei Xianyu
- College of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou, China
| | - Yongqi Shao
- Max Planck Partner Group, Institute of Sericulture and Apiculture, College of Animal Sciences, Zhejiang University, Hangzhou, China; Key Laboratory for Molecular Animal Nutrition, Ministry of Education, China.
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43
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Veresoglou SD, Johnson D, Mola M, Yang G, Rillig MC. Evolutionary bet-hedging in arbuscular mycorrhiza-associating angiosperms. New Phytol 2022; 233:1984-1987. [PMID: 34761405 DOI: 10.1111/nph.17852] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/16/2021] [Accepted: 11/07/2021] [Indexed: 06/13/2023]
Affiliation(s)
- Stavros D Veresoglou
- School of Ecology, State Key Laboratory of Biocontrol, Sun Yat-Sen University, 510006, Guangzhou, China
- Institut für Biologie, Freie Universität Berlin, Berlin, Germany
| | - David Johnson
- Department of Earth and Environmental Sciences, Michael Smith Building, University of Manchester, Manchester, M13 9PT, UK
| | - Magkdi Mola
- Institut für Biologie, Freie Universität Berlin, Berlin, Germany
| | - Gaowen Yang
- Institut für Biologie, Freie Universität Berlin, Berlin, Germany
- Berlin-Brandenburg Institute of Advanced Biodiversity Research (BBIB), D-14195, Berlin, Germany
| | - Matthias C Rillig
- Institut für Biologie, Freie Universität Berlin, Berlin, Germany
- Berlin-Brandenburg Institute of Advanced Biodiversity Research (BBIB), D-14195, Berlin, Germany
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44
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Jiao S, Chen W, Wei G. Core microbiota drive functional stability of soil microbiome in reforestation ecosystems. Glob Chang Biol 2022; 28:1038-1047. [PMID: 34862696 DOI: 10.1111/gcb.16024] [Citation(s) in RCA: 30] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/29/2021] [Revised: 11/23/2021] [Accepted: 11/22/2021] [Indexed: 06/13/2023]
Abstract
Revealing the ecological roles of core microbiota in the maintenance of the functional stability of soil microbiomes is crucial for sustainable ecosystem functioning; however, there is a dearth of whole-soil profile studies on the fundamental topic in microbial ecology, especially in the context of ecological restoration. Here, we explored whether core microbiota influence the temporal changes in the functional stability of soil microbiomes throughout the soil profile (i.e., soil depths of 0-300 cm) during natural succession in restored ex-arable ecosystems, via high-throughput amplicon and metagenomic sequencing. We revealed that core microbiota were essential for the maintenance of the functional stability of soil microbiomes in reforestation ecosystems. Specifically, the core taxa within one cluster of soil network, which had similar ecological preferences, had major contributions to functional stability. Reforestation significantly decreased the functional stability of soil microbiomes, which exhibited significant variations along the vertical soil profile in the reforested soils. Overall, the findings enhance our understanding of the factors driving functional stability in soil microbiomes, and suggests that core microbiota should be considered a key factor and integrated in policy and management activities targeting the enhancement and maintenance of functional stability and ecosystem sustainability in ecological restoration programs.
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Affiliation(s)
- Shuo Jiao
- State Key Laboratory of Crop Stress Biology in Arid Areas, Shaanxi Key Laboratory of Agricultural and Environmental Microbiology, College of Life Sciences, Northwest A&F University, Yangling, China
| | - Weimin Chen
- State Key Laboratory of Crop Stress Biology in Arid Areas, Shaanxi Key Laboratory of Agricultural and Environmental Microbiology, College of Life Sciences, Northwest A&F University, Yangling, China
| | - Gehong Wei
- State Key Laboratory of Crop Stress Biology in Arid Areas, Shaanxi Key Laboratory of Agricultural and Environmental Microbiology, College of Life Sciences, Northwest A&F University, Yangling, China
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45
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Biswal D. Nematodes as Ghosts of Land Use Past: Elucidating the Roles of Soil Nematode Community Studies as Indicators of Soil Health and Land Management Practices. Appl Biochem Biotechnol 2022; 194:2357-2417. [PMID: 35037168 DOI: 10.1007/s12010-022-03808-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/30/2021] [Indexed: 11/30/2022]
Abstract
Soil health is a matter of growing concern because of its degradation due to unsustainable anthropogenic activities over the last few decades. It is maintained by interactions among the components of the soil food web commonly concentrated in the vicinity of the plant roots, called the rhizosphere. The soil food web is dominated by nematodes. They occupy various trophic positions because of their diverse feeding habits. The free-living forms are mainly dependent on soil bacteria and fungi for their nutrition, while the parasitic forms feed on plant roots. The population of these two groups is regulated by the activities of predatory nematodes which can be carnivorous or omnivorous. The soil nematodes thereby partake responsibilities in nutrient cycling, mineralization and decomposition pathways which, in turn, affects the aboveground productivity. This intricately connected food web structure is vulnerable to disturbances like increased soil salinity, acidity, nitrogen enrichment, tillage, crop rotations, fertilizers, pesticides, soil amendment techniques and heavy metal pollution. The effects are reflected by alterations in the abundance and diversity of soil nematodes belonging to various trophic groups. These alterations have been formulated into measurable indices like maturity index (MI), structure index (SI), enrichment index (EI) and channel index (CI). The faunal profile and metabolic footprints of soil nematodes are latest developments in the field of nematode community analyses. Though these indices cannot replace the conventional soil ecotoxicological assays, they can give added information about soil biology which can be utilized to design sustainable land use practices.
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Affiliation(s)
- Debraj Biswal
- Department of Zoology, Government General Degree College at Mangalkote, Burdwan, West Bengal, 713132, India.
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46
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Corcoz L, Păcurar F, Pop-Moldovan V, Vaida I, Stoian V, Vidican R. Mycorrhizal Patterns in the Roots of Dominant Festuca rubra in a High-Natural-Value Grassland. Plants (Basel) 2021; 11:112. [PMID: 35009115 PMCID: PMC8747109 DOI: 10.3390/plants11010112] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/10/2021] [Revised: 12/28/2021] [Accepted: 12/29/2021] [Indexed: 06/14/2023]
Abstract
Grassland ecosystems occupy significant areas worldwide and represent a reservoir for biodiversity. These areas are characterized by oligotrophic conditions that stimulate mycorrhizal symbiotic partnerships to meet nutritional requirements. In this study, we selected Festuca rubra for its dominance in the studied mountain grassland, based on the fact that grasses more easily accept a symbiotic partner. Quantification of the entire symbiosis process, both the degree of colonization and the presence of a fungal structure, was performed using the root mycorrhizal pattern method. Analysis of data normality indicated colonization frequency as the best parameter for assessing the entire mycorrhizal mechanism, with five equal levels, each of 20%. Most of the root samples showed an intensity of colonization between 0 and 20% and a maximum of arbuscules of about 5%. The colonization degree had an average value of 35%, which indicated a medium permissiveness of roots for mycorrhizal partners. Based on frequency regression models, the intensity of colonization presented high fluctuations at 50% frequency, while the arbuscule development potential was set to a maximum of 5% in mycorrhized areas. Arbuscules were limited due to the unbalanced and unequal root development and their colonizing hyphal networks. The general regression model indicated that only 20% of intra-radicular hyphae have the potential to form arbuscules. The colonization patterns of dominant species in mountain grasslands represent a necessary step for improved understanding of the symbiont strategies that sustain the stability and persistence of these species.
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Affiliation(s)
- Larisa Corcoz
- Department of Microbiology, Faculty of Agriculture, University of Agricultural Sciences and Veterinary Medicine Cluj-Napoca, Calea Mănăştur 3-5, 400372 Cluj-Napoca, Romania; (L.C.); (V.P.-M.); (R.V.)
| | - Florin Păcurar
- Department of Grasslands and Forage Crops, Faculty of Agriculture, University of Agricultural Sciences and Veterinary Medicine Cluj-Napoca, Calea Mănăştur 3-5, 400372 Cluj-Napoca, Romania;
| | - Victoria Pop-Moldovan
- Department of Microbiology, Faculty of Agriculture, University of Agricultural Sciences and Veterinary Medicine Cluj-Napoca, Calea Mănăştur 3-5, 400372 Cluj-Napoca, Romania; (L.C.); (V.P.-M.); (R.V.)
| | - Ioana Vaida
- Department of Grasslands and Forage Crops, Faculty of Agriculture, University of Agricultural Sciences and Veterinary Medicine Cluj-Napoca, Calea Mănăştur 3-5, 400372 Cluj-Napoca, Romania;
| | - Vlad Stoian
- Department of Microbiology, Faculty of Agriculture, University of Agricultural Sciences and Veterinary Medicine Cluj-Napoca, Calea Mănăştur 3-5, 400372 Cluj-Napoca, Romania; (L.C.); (V.P.-M.); (R.V.)
| | - Roxana Vidican
- Department of Microbiology, Faculty of Agriculture, University of Agricultural Sciences and Veterinary Medicine Cluj-Napoca, Calea Mănăştur 3-5, 400372 Cluj-Napoca, Romania; (L.C.); (V.P.-M.); (R.V.)
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Liu Y, Ma W, He H, Wang Z, Cao Y. Effects of Sugarcane and Soybean Intercropping on the Nitrogen-Fixing Bacterial Community in the Rhizosphere. Front Microbiol 2021; 12:713349. [PMID: 34659143 PMCID: PMC8515045 DOI: 10.3389/fmicb.2021.713349] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2021] [Accepted: 09/06/2021] [Indexed: 11/24/2022] Open
Abstract
Intercropping between sugarcane and soybean is widely used to increase crop yield and promote the sustainable development of the sugarcane industry. However, our understanding of the soil microenvironment in intercropping systems, especially the effect of crop varieties on rhizosphere soil bacterial communities, remains poor. We selected two excellent sugarcane cultivars, Zhongzhe1 (ZZ1) and Zhongzhe9 (ZZ9), from Guangxi and the local soybean variety GUIZAO2 from Guangxi for field interplanting experiments. These two cultivars of sugarcane have good drought resistance. Rhizosphere soil samples were collected from the two intercropping systems to measure physicochemical properties and soil enzyme activities and to extract total soil DNA for high-throughput sequencing. We found that the diversity of the rhizosphere bacterial community was significantly different between the two intercropping systems. Compared with ZZ1, the ZZ9 intercropping system enriched the nitrogen-fixing bacteria, increasing the available nitrogen content by 18% compared with that with ZZ1. In addition, ZZ9 intercropping with soybean formed a more compact rhizosphere environment than ZZ1, thus providing favorable conditions for sugarcane growth. These results provide guidance for the sugarcane industry, especially for the management of sugarcane and soybean intercropping in Guangxi, China.
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Affiliation(s)
- Yue Liu
- College of Agronomy, Guangxi University, Nanning, China
| | - Wenqing Ma
- Guangxi South Subtropical Agricultural Science Research Institute, Chongzuo, China
| | - Hongliang He
- Guangxi South Subtropical Agricultural Science Research Institute, Chongzuo, China
| | - Ziting Wang
- College of Agronomy, Guangxi University, Nanning, China
| | - Yanhong Cao
- Guangxi Key Laboratory of Livestock Genetic Improvement, The Animal Husbandry Research Institute of Guangxi Zhuang Autonomous Region, Nanning, China
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Affiliation(s)
- Tanya E. Cheeke
- School of Biological Sciences. Washington State University 2710 Crimson Way Richland WA 99354 U.S.A
| | - Mary Schneider
- School of the Environment, Washington State University Pullman WA 99163 U.S.A
| | - Alifya Saify
- School of Biological Sciences. Washington State University 2710 Crimson Way Richland WA 99354 U.S.A
| | - Megan Brauner
- School of Biological Sciences. Washington State University 2710 Crimson Way Richland WA 99354 U.S.A
| | - Rebecca Bunn
- Department of Environmental Sciences Western Washington University MS 9181 Bellingham WA 98225 U.S.A
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Sharma IP, Sharma AK. Above and below-ground involvement in cyclic energy transformation that helps in the establishment of rhizosphere microbial communities. Symbiosis 2021; 85:21-30. [DOI: 10.1007/s13199-021-00791-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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50
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Valdez JW, Brunbjerg AK, Fløjgaard C, Dalby L, Clausen KK, Pärtel M, Pfeifer N, Hollaus M, Wimmer MH, Ejrnæs R, Moeslund JE. Relationships between macro-fungal dark diversity and habitat parameters using LiDAR. FUNGAL ECOL 2021. [DOI: 10.1016/j.funeco.2021.101054] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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